Traceroute attempts to reveal responding steps along a network path. Some routers do not answer its probes, and intermediate reply behaviour can differ from ordinary forwarding. An asterisk is not automatic proof that video packets stop there.
Read the end-to-end result
A middle hop with missing replies followed by responsive later hops can still be forwarding traffic. Do not identify that router as broken solely from its probe response. The method also may not follow the media session's exact path.
Know the limits
Routing can change, paths can be asymmetric and devices can prioritise forwarding over diagnostics. A route trace is a clue for an administrator, not a complete explanation of a playback fault.
Share a proportionate summary
Give the connection type, time and affected destination privately to appropriate support. Avoid publishing account-bearing URLs. Combine the trace with actual playback symptoms and controlled wired comparisons instead of using it as the only evidence.