I just updated to 2020 SP3, I seem to be having issues with the command window. When I type list and press enter it performs the function. But when i press enter to go through the items listed, every 4th item (or when the window gets full) it shows a blank screen and skips that particular item. 

Has anybody else seen this? We tried this on two computers with SP3 and both have same problem. Any assistance would be great. 
Let me know if you need any more details.