SH 5 campaign - bugs, solutions - pls help with Narvik

[Rimmon]

Good afternoon fellow captains...

I'd like to briefly summarize my frustration about bugs in Total Germany carrier mission and I beg you for help with Narvik

Blockade of Germany: carrier mission
I sunk about 4 carriers, none of them counted. Then I found out you need to request this mission at base port, otherwise it won't count..... (but the tonnage part counted without any issues)

Then I returned back to Plymouth (never found carrier in the red circle), and sunk another carrier, it counted. Mission completed. Then I spotted another carrier, sent it to the deeps again..... and another one appeared but I was already short on ammo....

6 carriers down? Wait a second....
Ship sunk! Glorious Fleet Carrier - that's the message I found in my savegame CarreerTrack.upc.... 4x.... Every time I sink this carrier, new one appears in plymouth and leaves the harbor. Just awesome.

Can't complete Narvik (Op Weserübung):
After my experience with Blockade of Germany, I headed to port when I recieved this mission and requested it to have it active. Although I lost 2 weeks in docks...

Then I moved to Narvik territorial waters (marked on map, easy...) sent down 8 british ships from one convoy, none of them counted. Then waited for the norwegian ones after restocking torps.... again no result... (March 21)

Any advice please? I don't want to restart my carreer, because I already invested so much time and effort in it, but I just can't get over this mission.

UPDATE:
Game restart tried.
Load game tried - magically the first ship counted for the mission. Then I saved the game, but next ships didn't count again... After next load, again no result (restarting the game included).