I found another way to demonstrate the bug
When NDAA targets a creature that for any reason does not enter as a creature(in this example it's a The Modern Age//Vector Glider) it creates the token, fails to attach it, then it does not cease to exist.

One of the rulings for NDAA is this:

which means that the role token should not be created in the first place.
However, there is a new part to this that I discovered

Upon playing a Basilisk Gate, the Wicked token did this. It forces you to select a legal target, regardless of whether that target was returned by NDAA.

I have reason to believe that any permanent entering triggers this effect, because in game 1 #910257180 of event 276839606, (Please let me know if I'm formatting this wrong) where I originally discovered this bug, the same effect happened when I played an Angelic Renewal, forcing me to attach to an opponent's creature, as I controlled none at the time.
This (thankfully) didn't have a major effect on the game, but was concerning enough to warrant a report
Thanks for reading all of this, and good luck!