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.
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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.
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Matt commented
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.