Trying it again and it appears to be the case for this outcome to trigger Rathalos/Azure and Glavenus. It is yet to be tested with Acidic Glavenus, but possibility of it happening is in the Guiding Lands since Acidic Glavenus is exclusive to the Rotten Vale in the New World, and both cannot meet normally like Glavenus with Rathalos/Azure in the Ancient Forest or the Elder's Recess.
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