When I have two or more states added to a component I'm not able to delete any states but the default. I click on the state but there's not way of deleting it. I can only delete the whole thing with every state but not single states.
Sorry to hear about the trouble. I tried this in XD 18.104.22.168 on Windows 10 machine and was able to delete other states as well apart from default states so will it be possible for you to record a small video of the workflow that you are following so that we can test this on our end? We'll try our best to help you with it.