Well... as for the error, I posted the sample code in the first post. Thats what shows the bug in the priority execution for LabVIEW RT.
In my code, I do sometimes have timed loops inside a timed loop.... I try to avoid it, after editing the code to remove all the Wait (ms) I used to have, I've now got timed sequences inside a timed loop.
The bug shows up weather you are inside of an internal loop or not I think.... but using a timed sequence setup I've removed all the Wait (ms) blocks.
If I use a timed sequence in the Test code I posted above the ABORT VI button works fine.
This code works fine for example.