Screen goes black at first when I zoom in, eand ends in black when I zoom out

**What is your operating system?**Linux Mint

(If you are using Linux, you must state how you installed Shotcut as there are too many builds and packages. In general, we do not make the build installed by your distribution package manager unless it installs the Snap. The developers only build, test, run, and support the builds shown on our download page.)

What is your Shotcut version (see Help > About Shotcut)?

*Can you repeat the problem? If so, what are the steps?**(Please be specific and use the names as seen in Shotcut, preferably English. Include a screenshot or screen recording if you can. Also, you can attach logs from either View > Application Log or right-click a job and choose View Log.)

It supposed to that when you have Fade In Video and Fade Out Video filters. That is not a bug, and we do not accept bug reports for a version that old.