Hi Krzysztof:
I solved the problem to have two services running different MongoDB versions. Both of them used different cfg files adapted to each version (i.e. each had a different storage and sysLog specs.)
I had to dump the data from version 3.2 and restore it for version 3.4. Now I have two different MongoDB services, one running at 27017 and the other at 27018.
Also from experience you should configure the services to start delayed so the service will always start.
I hope this solves your problem.