I'm trying to update my MongoDB installation from 3.6 to the latest version [4.4] on Ubuntu16.04 using apt-get. Going from 4.0 to 4.2 I faced a problem during the startup process after updating the binaries and mongo.log shows the exception below:

2020-08-07T14:58:26.205+0300 I STORAGE [initandlisten] exception in initAndListen: Location40415: BSON field 'MinValidDocument.oplogDeleteFromPoint' is an unknown field., terminating

I'm using WiredTiger and I checked the feature compatibility version and other prerequisites according to the installation and the compatibility docs and everything looks fine. I also tried mongod repair but with no luck.

I don't have any clue on what could be the source of this problem and I'd be grateful if someone can help.