Unselctable and undo glitch
When I go to select a shape or text item sometimes the bounding box disappears. Even when I go to show bounding box (command + Shift + B) the issue isn't resolved. I don't do anything different and it seems to happen randomly. I have to restart illustrator to fix it but sometimes that doesn't.
Once the bounding box disappears I cannot track the type and if I move an item it goes back to its org place.
Additionally, when I hit undo rather than going back one action it will go back 4 or 5 actions. This only happens once I have the selection issue.
I have uninstalled and reinstalled adobe with no luck. I have uninstalled and reinstalled high sierra 10.13.3 with no luck.
Please accept my sincere apology for the inconvenience. Please get in touch with us at any of the other support channels – https://helpx.adobe.com/support.html . Since this is not a generic issue that we can reproduce at our end, we will need someone to look into your machine to figure out what is going on here.
I'm having this exact same issue and it is a nightmare! Using MacOS Mojave, Illustrator v 23.0.1. The only fix is to quit Illustrator and then re-open. Illustrator also gives me a 'Crash Report' whenever this happens, even if the app seems to close correctly.