I am runnng the current LrC and I am currently on Mac OS 15.5, and on at least two different M chips with well endowed machines. The problem has been present for many versions of both LrC and the OS. The problem occurs when I am typing in the Title or Description field for an image. The first symptom is that the cursor position becomes eratic and the text entered becomes garbled, often duplicated and not even consistently visible until after I have restarted LrC. If I stop and restart LrC, I can correct the garbled text in the text box and proceed. What usually happens though is that LrC blows out completely and I am left with bug report windows for Adobe and Apple. I always fill these in so you should have many tens of example crash reports. I recently noticed that the problem may only occur after I turn Spell Check While Typing mode on. (Wish it was on by default but that is another story and shoukd be a post maybe). Can I be of more assistance in resolving this? Just let me know. As a retired SW developer myself, I may be of some assistance if you want me to try anything or run a debug version.