When making a new frame on top of an existing text frame. It is not possible to make the new frame a text frame. It clicks right through it.
This has been a bug for many years now, and i have to explain almost every week to my students.

Also in the 2022 version of InDesign.
I hoped it to be solved. but no..

A little video explain https://vimeo.com/641165029/2b8106b016