I do not have any other air mice for testing at the moment. If you have a wireless keyboard and mouse, see if they work on your VIM2.
Quality varies widely with generic air mice. Since it also does not work on your Macbook, I would suspect it may have an issue. Just to state the obvious, make sure batteries are in good shape, or if rechargeable air mouse, fully charged.
I think I have two IR remotes that work with the VIMs. When I get home, I will insure both work and confirm here. Do you have other TV boxes? I have a Ugoos TV box, its remote is like one of the Khadas models and works fine on the VIMs. I’ll post back results later this evening(about 6 hours from now).