Two "official" versions of the ISS-46 patch were created. Production (of at least 700) of the first version of the patch had been started of the first design with the squared "46". Without explanation, production was ceased and a replacement design with a rounded "46" was started. There was some rumor that the original 46 looked a bit like the insignia of Ukiranian battallion called "Azov Battalion", but there is no confirmation of that. Spaceboosters LTD of the UK also produced their own version of the patch as they were tired of waiting for A-B Emblems to fulfill their order.
Revised, official version:
Spaceboosters LTD UK version:
Space Boosters LTD UK revised version: