Running ASB 73.0 in Avast Sandbox Results in a Security Warning

ASB 73.0.1270.87 32-bit Win 10 1809 64-bit. ASB is sandboxed by Avast AIS when this condition occurs.

This ASB condition when sandboxed is the only time the warning dialog box (which is attached below) will show up.

I don’t have a network drive on my private network, so ASB settings have to be stored locally even when sandboxed by Avast. (ASB is not ‘Always run in sandbox’ but only on [sandboxed] demand.)
[EDIT:]