I'd like to follow up.
I have attached two log files. On the first one (2019-02-22, seem incomplete?), ATC somehow transmitted with my callsign to an AI aircraft, which then answered, after which my FO (PF3) also acknowledged. This also happened, albeit more often, on the flight regarding which I opened this topic.
On the second one (2019-02-23), right after take-off, and before I contacted ANY facility, I received strange requests: Contact approach, runway change, then heading this and heading that. Also, PF3 seems to have lost the freqs for my destination airport.
Can someone please confirm this, and maybe direct me to what I did wrong? Thanks.