[Odometer] Unexpected error when submit expense with image

[jakubkalinski0]

Explanation of Change

Fixed an unexpected error when submitting a distance expense with odometer images. encodeToBase64() called without an explicit format defaults to PNG in Skia, but the file extension derived from the source image name (e.g. .jpg) didn't match the actual PNG content, causing a MIME type mismatch when the receipt was uploaded. Fixed by explicitly encoding as JPEG and propagating the image type to setMoneyRequestReceipt.

Fixed Issues

$ #85405
PROPOSAL: N/A

Tests

1. Press FAB -> go to "Track distance" -> choose "Odometer" tab
2. Enter start and end odometer readings
3. Press on the photo thumbnail -> capture or pick an image -> verify it is shown in the thumbnail (do that for both Start and End)
4. Press "Next" -> verify no error is shown and navigation proceeds normally
5. Create expense
6. Verify that no error occurs and the stitched image is attached correctly as a receipt

---

7. Press FAB -> go to "Track distance" -> choose "Odometer" tab
8. Enter start and end odometer readings
9. Press on the photo thumbnail -> capture or pick an image -> verify it is shown in the thumbnail (DO THAT ONLY ONCE for either Start or End)
10. Press "Next" -> verify no error is shown and navigation proceeds normally
11. Create expense
12. Verify that no error occurs and the stitched image is attached correctly as a receipt

---

13. Press FAB -> go to "Track distance" -> choose "Odometer" tab
14. Enter start and end odometer readings
15. Press on the photo thumbnail -> capture or pick an image -> verify it is shown in the thumbnail (do that for both Start and End)
16. Press "Next" -> verify no error is shown and navigation proceeds normally
17. Go to "Distance" -> delete one of the images -> press "Save"
18. Create expense
19. Verify that no error occurs and the stitched image is attached correctly as a receipt

• Verify that no errors appear in the JS console

Offline tests

Same as Tests

QA Steps

Same as Tests

• Verify that no errors appear in the JS console

PR Author Checklist

• I linked the correct issue in the ### Fixed Issues section above
• I wrote clear testing steps that cover the changes made in this PR
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  • I turned off my network connection and tested it while offline to ensure it matches the expected behavior (i.e. verify the default avatar icon is displayed if app is offline)
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Screenshots/Videos

iOS native has to be tested on a physical device

Android: Native

android.webm

androidnative2.webm

androidnative3.webm

[melvin-bot]

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[DylanDylann]

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[DylanDylann]

Reviewer Checklist

• I have verified the author checklist is complete (all boxes are checked off).
• I verified the correct issue is linked in the ### Fixed Issues section above
• I verified testing steps are clear and they cover the changes made in this PR
  • I verified the steps for local testing are in the Tests section
  • I verified the steps for Staging and/or Production testing are in the QA steps section
  • I verified the steps cover any possible failure scenarios (i.e. verify an input displays the correct error message if the entered data is not correct)
  • I turned off my network connection and tested it while offline to ensure it matches the expected behavior (i.e. verify the default avatar icon is displayed if app is offline)
• I checked that screenshots or videos are included for tests on all platforms
• I included screenshots or videos for tests on all platforms
• I verified that the composer does not automatically focus or open the keyboard on mobile unless explicitly intended. This includes checking that returning the app from the background does not unexpectedly open the keyboard.
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  • Android: HybridApp
  • Android: mWeb Chrome
  • iOS: HybridApp
  • iOS: mWeb Safari
  • MacOS: Chrome / Safari
  • MacOS: Desktop
• If there are any errors in the console that are unrelated to this PR, I either fixed them (preferred) or linked to where I reported them in Slack
• I verified there are no new alerts related to the canBeMissing param for useOnyx
• I verified proper code patterns were followed (see Reviewing the code)
  • I verified that any callback methods that were added or modified are named for what the method does and never what callback they handle (i.e. toggleReport and not onIconClick).
  • I verified that comments were added to code that is not self explanatory
  • I verified that any new or modified comments were clear, correct English, and explained "why" the code was doing something instead of only explaining "what" the code was doing.
  • I verified any copy / text shown in the product is localized by adding it to src/languages/* files and using the translation method
  • I verified all numbers, amounts, dates and phone numbers shown in the product are using the localization methods
  • I verified any copy / text that was added to the app is grammatically correct in English. It adheres to proper capitalization guidelines (note: only the first word of header/labels should be capitalized), and is either coming verbatim from figma or has been approved by marketing (in order to get marketing approval, ask the Bug Zero team member to add the Waiting for copy label to the issue)
  • I verified proper file naming conventions were followed for any new files or renamed files. All non-platform specific files are named after what they export and are not named "index.js". All platform-specific files are named for the platform the code supports as outlined in the README.
  • I verified the JSDocs style guidelines (in STYLE.md) were followed
• If a new code pattern is added I verified it was agreed to be used by multiple Expensify engineers
• I verified that this PR follows the guidelines as stated in the Review Guidelines
• I verified other components that can be impacted by these changes have been tested, and I retested again (i.e. if the PR modifies a shared library or component like Avatar, I verified the components using Avatar have been tested & I retested again)
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• If any new file was added I verified that:
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• If a new CSS style is added I verified that:
  • A similar style doesn't already exist
  • The style can't be created with an existing StyleUtils function (i.e. StyleUtils.getBackgroundAndBorderStyle(theme.componentBG)
• If the PR modifies code that runs when editing or sending messages, I tested and verified there is no unexpected behavior for all supported markdown - URLs, single line code, code blocks, quotes, headings, bold, strikethrough, and italic.
• If the PR modifies a generic component, I tested and verified that those changes do not break usages of that component in the rest of the App (i.e. if a shared library or component like Avatar is modified, I verified that Avatar is working as expected in all cases)
• If the PR modifies a component related to any of the existing Storybook stories, I tested and verified all stories for that component are still working as expected.
• If the PR modifies a component or page that can be accessed by a direct deeplink, I verified that the code functions as expected when the deeplink is used - from a logged in and logged out account.
• If the PR modifies the UI (e.g. new buttons, new UI components, changing the padding/spacing/sizing, moving components, etc) or modifies the form input styles:
  • I verified that all the inputs inside a form are aligned with each other.
  • I added Design label and/or tagged @Expensify/design so the design team can review the changes.
• If a new page is added, I verified it's using the ScrollView component to make it scrollable when more elements are added to the page.
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Screenshots/Videos

Android: HybridApp

Android: mWeb Chrome

iOS: HybridApp

iOS: mWeb Safari

MacOS: Chrome / Safari

[DylanDylann]

@jakubkalinski0 I still can reproduce the bug (when removing the end image, only submit the start image)

Screen.Recording.2026-03-18.at.13.36.24.mov

[jakubkalinski0]

@DylanDylann It's fixed now, I've also added those test cases to the Tests section and updated the videos

Confirmation videos

androidnative2.webm

androidnative3.webm

[codecov]

Codecov Report

✅ Changes either increased or maintained existing code coverage, great job!

Files with missing lines	Coverage Δ
src/libs/stitchOdometerImages/index.native.ts	0.00% <0.00%> (ø)
...ou/request/step/IOURequestStepDistanceOdometer.tsx	0.00% <0.00%> (ø)
.../step/IOURequestStepOdometerImage/index.native.tsx	0.00% <0.00%> (ø)
... and 64 files with indirect coverage changes

[Julesssss]

LGTM, just held on final C+ review

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