During the task, the progress bar might suddenly jump to a 100% and stay there for several seconds up to a few minutes and then usually reverts back to the normal progress. This can happen several times per task but now with this behavior, the progress bar issue seems somewhat alleviated.

That's the problem that needs to be fixed.

I don't believe that there is any workaround, and so we are waiting on the new version.

The application has been updated on some systems - see https://www.sidock.si/sidock/forum_thread.php?id=163&postid=1361 and so this problem should be fixed.

But based on https://www.sidock.si/sidock/apps.php it is still to be fixed for Linux running on ARM, hardware FP.

Fixed also. :)