BSplayer error problem with games

[Tizio]

Try to start the game first and then the video on BSplayer (or vice-versa)

Does this happen with all games or only with a specific game?
Other than the rendering mode, it could be that the game and BSplayer share the same codec and there could cause a conflict. When you start the video on BSplayer, right-click on the video window, then select these menu options -> Options -> Filters -> Advanced
List here the rusults (Audio, video, source, splitter, etc.), and if the conflicting game is only one also the game title.

Can you update BSplayer before doing other tests? It could also be a but in that ancient version, and v1.41 had nothing better than actual v2.40 ;)