Yes, I did have the latest drivers installed - the ones as of early November 2020. The Adafruit moderator confirmed that they looked good, as well. The drivers did fix other problems related to Windows 7 (e.g. being able to update the bootloader, etc.), but did not appear to affect my experience with the sleep issue. I tried both TeraTerm and Mu.
As you stated you were not able to reproduce the issue, and unfortunately I did not try this on another Win7 machine. Didn't look for one and...




