When “Disable IPv6” is not checked, toggling the on switch results in ZeroTier crashing shortly after the “Connected” toast is shown. “Allow mobile data” has no effect on this problem. Checking “Disable IPv6” solves this problem. I did not experience this problem prior to the May 13 update on the Play Store.
Here is a logcat: may_21_2024_zt_logcat_transfusion.txt · GitHub