As of version 20.10.29.64, having multiple instances of TimeXtender open on the same project in the same environment will result in a series of intermittent deadlocks. This appears to happen when the work item feature on all open copies of TimeXtender attempt to get a lock on the same repository objects at the same time.
This sets off alerts on programs designed to monitor SQL Server performance - and, I’m guessing, may keep work items from being kept up to date and properly shared between all developers. It would be great if this issue could be resolved.