Same problem with Vn 5.42.6499 (both 32 bit & 64 bit versions) both simple delete and overwrite once.
Using Kaspersky Internet Security Vn 18.0.0.495(h), Winpatrol 35.5.207.8, Windows 10 (64 bit) 1709, Build 16299.431
and for browsers, Edge, Internet Explorer, Seamonkey (recognised as Firefox) and Vivaldi (not recognised).
I've gone back to Vn 5.41.6446 until it's fixed!