Hi. Upgraded to v21 from v20 when it was automatically available. I am on a Dell laptop 7501 with Intel(R) Core(TM) i7-10750H CPU @ 2.60GHz and 40gb RAM. Since installing v21 when illustrator runs it constantly runs the fans up and CPU temp is generally above 80degrees, after about an hour the program crashes. All drivers are up to date. Switched back to v20 and no issues, no fan noise in operation and temp about 20degrees lower!