Can anyone shed light on this situation?

I encountered an issue where a folder I attempted to share on my network wasn’t visible. Initially, I activated the Windows Sharing rule in the firewall settings, but that didn’t solve the problem. Turning off the firewall entirely also didn’t help. However, upon uninstalling Avast, I managed to map the shared folder using its IP address, since Windows couldn’t recognize the computer name. At that point, the folder and all its files were accessible on the network as expected. After reinstalling Avast, the shared folder became invisible again. Can anyone shed light on this situation?

Version and build of your Avast installation please?