Android mobile - how has delete in notes changed?

Could I ask how the delete function in notes has changed in the latest beta please? As you can see from the video, some words delete entirely when pressing delete once and other words delete letter by letter. It also seems to depend on how close it is to the line wrap.  So not sure if this is a bug or undeclared change of functionality.

https://youtu.be/dcW3HTt0ipE

Thanks

P