[Regression] GtkProgressBar slows down and stops animating
We have found an issue on the Gtkmm3 port of GParted. As you can see from the screencast the pulsebar stops animating after a few iterations:
This is a regression introduced in 3.22.28. By bisecting we found that the issue was introduced by c6901a8b. GParted is doing fine on its own side and regularly calls gtk_progress_bar_pulse().
Here is a minimal C sample: gtk_issue.c
You have to hide and show the progressbar many times. Takes a bit of time before it slows down..