When I dpkg -i on a ubiquiti router,
both
https://download.zerotier.com/RELEASES/1.12.2/dist/ubiquiti/zerotier-one_mips64.deb
&
https://download.zerotier.com/dist/ubiquiti/zerotier-one_mips64.deb
report to be builds at version 1.8.4 - is there a 1.12.2 available?