2 official rulings from Bandai, last ruled Mar 28, 2024. Straight answers to how this card actually resolves.

"I play a Digimon with [Sistermon] and use this card's <Your Turn> effect to digivolve this Digimon into [SaviorHuckmon] in my hand. Can I gain 1 memory from this card's inherited effect at this time?"
No, you can't. Your Digimon with [Sistermon] was played before the inherited effect could activate by digivolving this Digimon, therefore the inherited effect isn't triggered.
Ruled Mar 28, 2024
When I play a Digimon with [Sistermon], which effect activates first, that Digimon's <On Play> effect or this card's <Your Turn> effect?
The effects trigger simultaneously, so the player chooses the activation order.
Ruled Mar 28, 2024
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