WalterH
Didn't you look at the link? I only got that problem as i had a pinning of 550 for grommunio and didn't realize that the package python3-openapi-schema-validator is now available in trixie and the one from the grommunio repository will hopefully be removed for trixie.
and i just did a fresh install w/ all my changes since then
If anyone wants to give it a try but i will probably merge it in the next hour.
better problem reporting when people think it would be stable 😛.