This is a generic bug, which will be fixed in the next version.
In the meantime, you can workaround it by doing the following in each application which uses Auto-Complete:
Note that the above creates a new read-only package in your repository, similar to Common, called OMS.
Once the next version becomes available, and you update your studio, you can safely delete libraries/AutoCompleteWorkAround.tersus (but note that due to a low-level bug, you'll only be able to delete the file directly from the file-system and provided the studio is not running),
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