Ubuntu 20.04 LTS Applications Menu causes Ubuntu to hang

ai flag

steps to reproduce the problem:

  1. arrange all applications in folders.
  2. open any apps folder, don't run any app, just close the folder by clicking anywhere in the empty area.
  3. repeat step 2(you might open another apps folder) if necessary to reproduce the problem.

The system hangs and the only solution is to reach to the power button.

Don't know if it's a persistent issue. please try it and post back your results so we can confirm the case. ty

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