Rosie interaction with Lonis

Rosie Cotton of South Lane says "Whenever you create a token, put a +1/+1 counter on target creature you control".

Lonis, Cryptozoologist says "whenever a nontokencreature enters the battlefield, investigate (create a colorless clue artifact token with 2, sacrifice this artifact; draw a card).

When Rosie enters the battlefield while lonis is on the board, she makes her food as expected, and lonis makes his cle as expected, but the clue does not trigger rosie. in addition, any creature triggering lonis does not cause rosie to trigger on creation of the clue, leading me to believe something with investigating and rosie's ability may be wrong. She seems to trigger correctly with other triggers, such as prosperous inkeeper. As these cards are very synergistic in a bant CoCo combo list, this issue is quite relevant.

I also tested with other investigate cards, and they did not trigger her, but it did work for amass orcs and zombies and for a few others i tried. interestingly, chatterfang triggered rosie when making squirrels for the adeline, usher of the fallen and the others i tried, but when i investigated with wavesifter or other cards, rosie did not trigger on either the clues or the squirrels.

TLDR; Investigating does not seem to work as intended with Rosie; it does not seem to trigger Rosie to put a counter on a creature you control