Incent is a Waves token, so your Incent address is your Waves address.
It may be an issue with OpenLedger - try support for that?
Thanks, that is what I thought too. Will try that.
Actually it says "Please enter a valid INCNT address" (in red), I suppose this message comes up always just to make sure you get it right. So I was probably mistaken, when thinking my address is wrong.
So did the withdrawal go through ok? Waves wallet is good software, you can hold it safely and trade it there too if you want.