Andrej,

I found this about the Lisa

Gomm. Der Krieg zur See 1939-1945, Die Operationen in der Arktis, Teil 1 says:
M5608 lost on a mine 29-3-1942, 21.35 hour, pos. 69°42,15 North /31°28,10 East. Nothing about M5607 which is mentioned in other places in this book.

Standgut No 49 page 114 (Kriegsschauplatz Norwegen by Erling Skjold) says M5607 survived the the war.

I think in Gröner some Lisa’s are mixed-up.

Greetings from Holland, Hans