Single post in PokéDex errors

There is an inconsistency in how Mega Evolutions are listed in the Formes/Completion section of Pokedex entries. Below are screenshots from entries for Butterfree, Beedrill, and Alakazam as examples. This shows a mix of my Mega Evolution completion to show that this inconsistency is not dependent on completion. As you can see, the Butterfree entry only has the Mega Evolution under Formes/Completion and it is labeled only as Butterfree. Both Beedrill and Alakzam have both their regular and Mega Evolution listed under Formes/Completion. There are a few other Pokemon who can Mega Evolve who have this inconsistency. I can find those and list them out if it helps.