QLC 4.8.0 problems on Win7 32 bit

[als]

Hello Massimo,
Here are problems I have found in the new 4.8.0 release under Win7 32 bit:
- Using Step in Chaser, the Step duration in not well calculated when down time is filled
- Using in Step, loop and PingPong does not work
- in a show, video and audio cannot be mixed (1 track video + 1 track audio)
Maybe I have a wrong usage.
Thank you for your answer.
Regards
Alain