https://support.microsoft.com/en-us/topic/kb4501542-fix-refresh-command-stops-responding-occasionally-because-of-thread-deadlock-in-ssas-2017-tabular-mode-8d154681-c7ec-bc11-f85b-6165d4559b86
KB4501542 - FIX: Refresh command stops responding occasionally because of thread deadlock in SSAS...
FIX: Refresh command hangs occasionally because of thread deadlock in SSAS 2017 Tabular mode