Cannot open project created with a portable app with the flatpack app

Bug
1

I’ve Linux Mint and using the Linux portable Tar of 22.05.23
Now I’ve installed from flatpack that is 20.09.27

When I try to open a project created with the old version with the new one it crashes.
If I open old project created with the Linux Mint 21 version (its like a 2020 version) it works.

This is the console output:

[Debug  ] <MainWindow::open> "XXXXX/main-corso.mlt" 
[Info   ] <MainWindow::showStatusMessage> "Opening XXXXX/main-corso.mlt" 
[Debug  ] <MltXmlChecker::check> begin 
[Info   ] <MltXmlChecker::check> decimal point '.' 
[Debug  ] <MltXmlChecker::check> end 
[Debug  ] <VideoVectorScopeWidget::profileChanged> 709 
[swscaler @ 0x7fc814337f00] YUV color matrix differs for YUV->YUV, using intermediate RGB to convert
[Debug  ] <VideoVectorScopeWidget::profileChanged> 709 
[Debug  ] <NewProjectFolder::showEvent> m_profile "" action.data "" 
[Debug  ] <MainWindow::setProfile> "" 
[Debug  ] <Mlt::Controller::setProfile> setting to profile "Automatic" 
[Debug  ] <VideoVectorScopeWidget::profileChanged> 709 
[Debug  ] <MainWindow::setAudioChannels> 2 
[Debug  ] <Mlt::Controller::setAudioChannels> 2 
[Debug  ] <MainWindow::setAudioChannels> 2 
[Debug  ] <Mlt::Controller::setAudioChannels> 2 
[Debug  ] <VideoVectorScopeWidget::profileChanged> 709 
[Info   ] <MLT> [consumer sdl2_audio] Audio Opened: driver=pulseaudio channels=2 frequency=48000
[swscaler @ 0x7fc8144a1040] YUV color matrix differs for YUV->YUV, using intermediate RGB to convert
[Debug  ] <VideoVectorScopeWidget::profileChanged> 709 
[Info   ] <MLT> [consumer sdl2_audio] Audio Opened: driver=pulseaudio channels=2 frequency=48000
[swscaler @ 0x7fc8143d62c0] YUV color matrix differs for YUV->YUV, using intermediate RGB to convert
[Debug  ] <NewProjectFolder::showEvent> m_profile "" action.data "" 
[Debug  ] <MainWindow::setProfile> "" 
[Debug  ] <Mlt::Controller::setProfile> setting to profile "Automatic" 
[Debug  ] <VideoVectorScopeWidget::profileChanged> 709 
[Info   ] <MainWindow::open> decimal point '.' 
[Debug  ] <Mlt::Controller::setPreviewScale> 960 x 540 
[Debug  ] <Mlt::Controller::setProjectFolder> project folder "" 
[Debug  ] <MainWindow::setAudioChannels> 2 
[Debug  ] <Mlt::Controller::setAudioChannels> 2 
Segmentation fault (core dumped)
2

I have several projects from before 2021 that are still opening for me. Sometimes they had to repair them because of moved files but not all. I think this problem is project-specific with no clear way for a developer to reproduce it unless you can upload the project along with its media to somewhere to download.