There IS an issue in Avast free 21.4 but if Avast isn't sufficiently interested to check it out then that's fine with me. I maintain an archive of at least the previous ten subdot release offline installers so am ready to row back if necessary. I just want to know how to feedback data to the devs.
Avast 21.3 is, as far as I am concerned, as valuable as 21.4. I diligently update at each new subdot release so that I can do my due diligence as a beta tester (the Free version is a beta, isn't it?).