Sequencer - Problems with animated Post Production Volume parameters

I have problems with animated paramters in the Post Production Volume. In my case it is the auto expose function. (Exposure Bias) When I play out the first animation with the Sequencer Editor everything is ok. But in the second play out the keyframes are not recognized anymore. (no brightness change) Can you fix this in the next update?

Best regards, Andreas

UPDATE: Custom Start and End Frame are not working in the Sequencer export settings…