I have the same issue on two systems: a Thinkpad X220 with OpenBSD and a Ryzen 5 2400g system running Ubuntu 20.04. I am able to launch Archer with mged -o but if I do launch kosher Archer I get the ::hv3::formmanager error and a tcl8.6 complaint, even though I pass all tcl8.6 functionality tests on either system. I really do think there's probably something with this hv3_form.tcl script that needs addressing. Kudos to letting me configure and compile 7.32 on OpenBSD on the first try.