Maker API phantom calls?

Hello

I have a zwave relay switch, that I can switch on my phone through Maker API (among ca. 5 other switches), and I use it a couple times a day.
A regular issue I face is that I get "phantom calls", meaning the switch is called for example in the middle of the night, or sometimes a couple minutes after I already used the switch, seems totally random.
As I check the maker API logs, it clearly says that the command was called, but I don't know why.
Could someone recommend how I could go forward with the debugging, what I could check?