With the changes implemented in the 10.0 updates, guild bank operations no longer work if the add-on arkinventory is also loaded. I assume it changes something with how opening the guild bank gets propagated, as trying to use Bankstack with arkinventory will result in the error message “Must be at a bank” will show and no errors are created. All other operations work fine. I am not sure if the issue can be resolved on just bankstack side or if changes to ark inventory will also have to be made, if so I'll create an issue over there.