An update to the KDE Runtime has broken multiple applications using the PySide.BaseApp for about 3 days. These applications would crash upon launch due to an ABI mismatch.
Context: Update to 6.10.3 by DavidoTek · Pull Request #37 · flathub/io.qt.PySide.BaseApp · GitHub
The issue was caused by Qt being updated in the KDE Runtime without updating it in PySide.BaseApp.
This is quite important, please take a look at it.