Hi,
could be the same issue as for me, see [1] for details.
[1]: https://lore.kernel.org/stable/de6f52bb-c670-4e03-9ce1-b4ee9b981686@web.de/
Does applying 6259151c04d4e0085e00d2dcb471ebdd1778e72e from mainline (adapt hunk #2 to cleanly apply) help in your case, too, or do you maybe detected a different issue?
Cheers, Frank