I noticed that using Lazarus fixes 3_0 branch the TScrollBar does not work properly.
In order to reproduce the issue juts place a TScrollBar on a form and run the project. If you click on the bar and drag it, nothing happens. The bar does not move.
Tested with:
Lazarus 3.3 (rev release_3_2_0-75-g9e4dc74ca5) FPC 3.2.2 aarch64-darwin-cocoa
Should I open a bug in the bug tracker?