I have been using SC since version 17.xx always 64bit portable on a Windows 10 PC.
All my video projects were successfully created with SC up to 19.08.
I can open and edit all my 80 old *.mlt (2017-2019) in Shotcut including version 19.09
Now i find errors with older mlt-projects in newer SC (since 19.10):
The versions: 19.10., 19.12.16 and 19.12.23 show errors when opening old *.mlt.
SC ask to correct the project or not.
No matter whether I have it repaired or not, no clips can be previewed that have the filter rotate & scale activated.
If I deactivate rotate & scale, the preview works.
The Sharpen filter always shows the values 0.0% + 0.0%, instead of the original 50.0% + 5.0%.
Other filters i did not tested, cause at first i need a workaround with newer SC versions than 19.10.
I would like to use newer SC versions, especially 19.12.23, but then I can no longer use my old 80 *.mlt.
What can I do?