Greetings,
I updated the SEM appliance to 2020.2 yesterday and about 15 of my server agents stayed on 2019.4 and didn't upgrade. This cause gigantic openjdk files to flood the ContegoSPOP folder every ~30minutes until the C:\ filled up. I am unable to uninstall the old agent since the add/remove programs thinks the program is 135gigs. As a short term dirty solution, I've just had to delete the ContegoSPOP folder to get the server functionality back.
Has anyone else seen this issue or have suggestions on how to handle this situation?