You only get one drone; if you can move one, then it is working properly. If there's a ghost drone, we'll look into it but as long as your one works, we're good. Could you give me the intel link of the portal you have a ghost drone one?
I'll see what I can find out!
@NianticThia Because the incidence of problems was not 100%, it is difficult to say sure. However, the problem has not arise on today (in Japanese time). Let me watch it for a few days. Thanks!
Sorry to not check back on this sooner. Yes, mine stopped acting up and I only have one drone again now. I think it cleared up around the time you posted this, maybe a little after.