RGB Format list sometimes locking on `Custom...`

[MateuszGrabuszynski]

Describe the bug When dealing with raw RGB files and choosing Custom... RGB Format, it sometimes locks the list on that option.

To Reproduce Steps to reproduce the behavior:

1. Open a new instance of YUView
2. Import a RGB sequence
3. Choose RGB Format from the list as Custom..., then change bit depth from (default) 1 to 8 and press OK
4. The RGB Format list is showing Custom... (not RGB 8bit)
5. After that, sometimes the list does not want to open at all. Or if it opens, the "Custom RGB Format" window is not opening, when choosing Custom... from the list.

It is not the only way to reproduce this, it also happens when steps 1-3 are different. Especially when dealing with more items on the playlist.

Expected behavior The RGB Format should not lock on Custom....

Workaround Choosing a different RGB format before retrying with Custom... works from time to time (if the list is still opening).

Screenshots

Version

• OS: Windows Server 2022 (OS Build 20348.1726), Windows 11 (OS Build 22621.3007) - happens regardless
• Version: v2.14 (an MSI installer from Releases)

[ChristianFeldmann]

Was able to reproduce this. Thanks for the report. Something seems to be wrong when opening the custom dialog with RGB formats.

[ChristianFeldmann]

The merged PR should resolve the issue. Again thanks for the report. Please reopen if I missed something.