What build and version of TRS19 as in plus Platinum or Standard non subscription version and is this in Surveyor or Driver or both?
105100 TRS19 Plus and Platinum is now by default paused in Surveyor, feature of the Unified Driver Surveyor feature, un-pause is in the Tools Menu.
105096 TRS19 Plus as above.
105096 TRS19 Standard (Non Subscription version) has a known and much complained about bug in that it's paused in Surveyor with no means of un-pausing animations other than in Driver which N3V are aware of so will hopefully get fixed. Guessing that might be your problem?