Qt: Session management error on linux

[mgalenb]

I am getting an error when using :qt5 backend on linux RHEL 8.8

using PyCall
pygui(:qt5)
using PyPlot
fig,ax=subplots()

gives this error

"Qt: Session management error: Authentication Rejected, reason : None of the authentication protocols specified are supported and host-based authentication failed"

Other backends work ok. However I get a weird error when using :tk backend with the ImageView package.