I want to start this to say that this is NOT an issued caused by the new version of ACS.
I use Microsoft Windows 11 on the computer I write these posts upon. Last week I applied the latest round of Window updates to my computer. After that whenever I opened any part of ACS I was presented with a Java error window, and then ACS would open.
I contacted IBM Support who sent me this:
This is a common issue with the Windows 11 2H22. For more information and resolution follow this link:
The page linked to offers two solutions. I followed the instructions for Option 2, and it resolved this problem.