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Every other day this process appears and once it's started the IDE freezes completely by intervals of around ~30s leading to the app to crash half of the times. It looks like it has something to do with downloading/updating the index of Maven repositories.
might be a duplicate of issue 197510
Cannot evaluate freezes without a thread dump (or self-profiler snapshot). By the way, you can disable automatic repo index updating in Tools > Options > Miscellaneous > Maven.