Hi Michael,

Michael Albinus <michael.albinus@gmx.de> writes:
> Anyway, if you want to get rid of this bug, use the recent Tramp release
> 2.2.13 (not available via ELPA yet). Or the pretest version of Emacs 25.1.

Thanks; just intalled the updated version and M-x tramp-version says
2.2.13. I hope this bug is finally gone :)

Freundliche Grüsse,
-- 
Christian Kruse
https://wwwtech.de/about