That's 2 cues Tony. And you're the only vouching for it . And the first cue was muddy from the get go. Sorry, not enough
I can tell you when I used Enduro by Gen Finish, I wet sanded it then went with pistachio and ivory menzerna. It did not turn muddy . But, they did turn milky after a months. Your 45 days hanging test is not a great barometer .
We know auto clears are made for cars that bake and get rained/snowed on for years.
This one needs more people coming forward if they've used it .
I suspect it does not stick to phenolic, stabilized woods and metals all that well.
And it is not designed to be sprayed on epoxy base coat . Or UV .