What happened to my saved career? Known issues?

[DrLuger]

Playing the German career in single player, I finished about 3 missions with succes. With the gathered renown I fitted my boat with some new equipment and I got several crewmembers promoted. At this stage I got promoted with several medals myself (which appear in the little box in the briefing room). Very happy with this and proud of my accomplished missions
Unfortunately, when I started the next mission all progress seemed to be disappeared: no medals anymore, no promotions by the different crewmembers and boat equipped again with standard guns etc.
I read about savegame issues in another forum, but I was wandering are there still issues even with patch 1.5 installed (one could expect they're solved by now) or is it due to certain mods installed (latest TMO v 1.7, RFB, ...).
I hope there's an answer/ solution to this... I don't mind playing some missions again but it's quite frustrating if your progress is not awarded. I am sure all you skippers out there, understand this

Regards