Maybe because nobody has responded, nobody has your issues, or nobody is able to fix it in the HDMU image.
We know that there are issues. We know there are different versions of drivers. NONE of those work perfectly. They have different bugs. The only person who ever worked on the drivers is gone and he never disclosed the sources of the drivers.
But swapping one set of driver with another only creates different issues.
If openspa does all you want, why don't you use it? Oh yes I think they abandoned Azbox in their newer images.
Rhere is always a trade off.
And only asking for a fix is one thing, but being proactive testing to find a solution is another.
I could help Ingo. But only because he installed test files after test files.
Bonkel has no AzboxHD, he can't test anything anymore (not that he has time to look Azbox at the moment anyway).