Flatpak release is missing several effects, stabilizer for example

[JPT77]

Describe the bug:
Several effects are missing from the flatpak build, one of these is stabilizer. For the others see pics below.

Steps to reproduce the behavior:
Open effects tab, see list of video effects

Expected behavior:
stabilizer available

System Details:
Flatpak: OpenShot Studios, LLC org.openshot.OpenShot 3.1.1 stable system
Kubuntu 23.10, kernel 6.5.0-28-generic

Screenshots:

First image from flatpak installation, second image from appimage installation.

While the appimage package still suffers from #5423 flatpak release got this problem. Why hasn't the app image fix been released yet? (I cannot find any info on which branch or release the fix is assigned to)

[Colorjet3]

Please download the latest dev daily build AppImage and see if that has the missing effect(s).

1. Go to openshot.org/download/#daily and download the latest DEV Daily Build AppImage.
2. Make it executable and run it.
3. Verify all effects are available.

[jonoomph]

Yes, we really need to release our next production version, to get many fixes out into the wild. This will happen very soon. Apologies for the delay on this release.

[jonoomph]

Also, we don't officially support the Flatpak version, so I can't really help with that. But we do officially support the AppImage.

[JPT77]

Thank you very much. I am using the Appimage version until the flatpak version is fixed.
As about the comment by @Colorjet3 : The stable appimage release is not missing any filters. the flatpak release is.

Until now I very often heard the phrase "flatpak version is not supported".
could you please explain why that is?
Where do I find who is responsible for flatpak releases?
flatpak is a very convenient way of maintaining and updating software that does not come from the distribution's sources. Manjaro even integrates flatpak update into the system update process.