No credit for sinkings

Just finished patrol 1.
Left Wilhelmshaven 1.sep.39.
Returned to same 4.okt.39.
Sunk 6 vessels for 21.603 GRT.
Came under air attack once.
AM53 was void of RN units except for a lone convoy escort.

My mission sumary says "Career Start Date 0/0/0".
Gives no credit or renown for sinkings.
In the barracks I was allowed to give a qualification, but no medals.
There my renown was listed as 1970 (up from 500 at start).

Never run into this before.
Is it just a one patrol screw-up or, should the entire career be abandoned?
Or, would going back to my at sea save (West of Scapa Flow) be in order?