So sorry I missed your message until now. If you add the following line, you will see what I mean:
おや 、 おや 、 また ちっちゃな キキ が 足 を ひっかけた ね
The ちっちゃな will be converted by the AI to ちってはな, changing the っちゃ to っては. Unfortunately, this happens in absolutely every instance where the っちゃ contraction is followed by another character such as な or った as in my previous example with 切っちゃった. Which will become 切って いて ちゃった. It does not seem to happen when it is in its simple form ちゃう.
You can also add 切っちゃった and see how it changes.
I haven’t had the って repetition effect come out in a while and hand fixed it when it did come out. If it comes out again i will share it. I noticed that one way back so it may be gone now.
Thanks so much.
Edited to add: it happens with the "Resplit text with AI” feature. Which otherwise improves the text substantially compared to the regular parsing, so I use it all the time. 