No audio on all Stream Relay and T2-MI channels

[WS460]

I always use the latest Experimental SatDreamGr Image for my SF4008.

Today I noticed that there isn't audio anymore on all Stream Relay and T2-MI channels. A few weeks ago the video and audio reception was perfect. Now I can see only the video without audio. It's not clear when and why this problem appears. Can anyone give me a hint to solve the problem.

By the way, on all my SD, HD, UHD and IPTV channels, audio works properly.

[WS460]

I made many tests during the past few days.
First of all, I noticed that there's audio on the Stream Relay with DVB-S channels and no audio on DVB-S2 channels (all my T2-MI channels are DVB-S2 channels too).
So I'm sure, it's a SF4008 driver problem.
I randomly found a solution for my problem: I've to start TIMESHIFT after selecting my Stream Relay and T2-MI channels. Then audio works fine like in old times.
It's not the best, but a working solution until Octagon provides new drivers..