https://bugs.documentfoundation.org/show_bug.cgi?id=152406
--- Comment #33 from Patrick Luby <[email protected]> --- I have a new theory: I put a printf in -[SalFrameView scrollWheel:] and when I encounter the stuck scrollbar bug, I noticed that there was no output from my printf. In other words, -[SalFrameView scrollWheel:] stops getting called when the bug occurs. This makes me think that LibreOffice is doing some long-running job which is blocking the main thread. My theory is that only when this job is done, does LibreOffice dispatch all of the native swipe events that have been queued by macOS. @Telesto: the next time you encounter this bug, would you be willing to try to get a sample of the LibreOffice process from the Activity Monitor application? I am hoping that the sample will show us what LibreOffice is doing when the bug occurs. I'll try to grab a sample as well, but for me the bug only occurs for a few seconds so I have had no luck yet. -- You are receiving this mail because: You are the assignee for the bug.
