Recently the SRT library was updated with a commit which fixes packet loss for the case when SRT Sender is working in Listen mode.
This fix is on the master branch already, and it's on its way to the next SRT package release. Nimble Streamer team made changes to SRT Nimble Streamer package so our customers could make proper update and fix the problem for their streaming scenarios.
So if you use SRT Sender in Listen mode, we highly recommend you to upgrade SRT package.
This will fix the aforementioned problem and will improve your streaming experience.
If you have any questions, please feel free to contact our helpdesk so we could advise.
Related documentation
Nimble Streamer SRT feature set, SRT streaming setup,