Order of the Mutant: how would the strange metabolism feature work with the Exalted mutation?

Hey I have a question about the order of the mutant. How would the strange metabolism feature work with the Exalted mutation. If you are currently ignoring the negative effect of a mutagen, then replace it with another one as an action, do you suffer the negative effects? Reaction not action**. And I'm just curious in this case if you would lose the benefit of the strange metabolism if you decided to switch mutagens. And I'm guessing by the wording, you can only ignore one mutagen at a time.

— Scott Tipping (@SRTIPPING) January 28, 2020

If you flush/swap out a mutagen toy are ignoring the side effects for, unfortunately Strange Metabolism doesn’t transfer to the new mutagen. Gotta be calculating with that! 🙂

— Matthew Mercer (@matthewmercer) January 28, 2020