One issue I noticed here trying to convert the functions of a project, is that when I convert a function, all actions where the function is called that it is originaly disabled, the respective action of the build-in function is not disabled.
Example: (tried to upload screenshots, but it seems image upload is not working, so I'm using 'Copy as text' feature)
Old function :
-> [DISABLED] Function: Call "test" ()
Converted to build-in-function:
-> Functions (built-in): Call test
It seems like a little issue, but in large projects it can create big trouble.