During metadata deployment (native connection, check for conflicts=shared logins), a bunch of “fun” exceptions (Read access is allowed from event dispatch thread or inside read-action only) are logged during the listing metadata stage. There are a lot, but they all appear to be roughly the same, so only a few copied in attachment.
The deploy is still able to proceed (though presumably without checking for modifications properly)
Ugh...yeah, these "read access/write access allowed..." errors change as the base IDE gets updated based on the context in which certain things execute either changes and/or as JetBrains adds more of their own validation. I'll take care of these in the next build or so. Thanks for reporting.