Recent projects crash Kdenlive while loading them

I have the Flatpak of Kdenlive 26.04, and when I open recent complex projects, Kdenlive crashes while loading them with this error:

::::::::::: connecting timeline:  QUuid("{28b00899-2d10-419b-99d1-855504237474}") , DUR:  9914
qt.core.qobject.connect: QObject::connect(AudioDevInfo, Unknown): invalid nullptr parameter
qt.core.qobject.connect: QObject::connect(AudioDevInfo, MediaCapture): invalid nullptr parameter

This probably has to do with me installing and uninstalling many different versions of Kdenlive the past two weeks, but currently this is the only one on my system. It does load simple projects, those that merely stitch together clips. I’m not sure how to troubleshoot this and would definitely appreciate help.