[margro]

Never mind, now using for the record and it's working great.

Good to hear that ForTheRecord is working for you.
This gives me a valuable clue about the cause of the problem since the MediaPortal and ForTheRecord addons share most of the code for reading the timeshift buffer.

The MediaPortal addon has one optimization to speed-up the channel switching that probably causes your problem. This optimization was recently removed from the ForTheRecord addon. I will add an option to turn off this optimization.

Beta 1 had actually a "bug" that it didn't call the SwitchChannel() function anymore but always closed the existing channel before opening the new one. That is probably why it was working better in your case, because this effectively disabled my optimization.