I suspect this is a bug as it sounds like it might be related to this issue:
https://community.freepbx.org/t/warm-spare-trunks-are-not-disabled-on-restore
I suspect this is a bug as it sounds like it might be related to this issue:
https://community.freepbx.org/t/warm-spare-trunks-are-not-disabled-on-restore