From Issue22933: --- Some of our users periodically get a "Rect too big" error that crashes the OSX TL client. We are running TL Version 4.7.0 (build 5280) and OSX client v4.7.0. The user were trying to maximize the displayed session on one monitor and when they dragged a terminal window within the session a pop-up came saying "Rect too big" and clicking ok closed the client altogether. Unfortunately the log file is not available. --- I've not been able to reproduce the problem.
We saw this problem on the Wyse terminal in our conference room the other day, so not limited to macOS.
*** Bug 7297 has been marked as a duplicate of this bug. ***
I can reproduce this problem 1. Started Thinlinc 4.12 client (Debian 10) to 4.12 server (Debian 10) 2. Opened up 'Master PDF Editor 5', then opened up a PDF 3. Go to Comments menu -> Stamp, 4. Select a Stamp, it crashes The problem is that it changes the mouse cursor to a very large cursor which is a stamp that you use on your PDF. So this could happen in any program which changes the cursor to a large picture.
I'm afraid that is a different bug. I've filed bug 7880 to track the issue with huge cursors. Please subscribe to that for updates.