So I tried a few different scenarios and it seems this only occurs consistently in certain cases.

I'm still unsure why it wouldn't let me heal the Wood Wailer that time - maybe a quest restriction or a glitch? - but I was able to figure out:


- If you're out of range it will stop and tell you you're out of range (as expected)
- If you're casting and the target moves out of range, it will be interrupted (as expected)
- If you're casting and the target leaves the area by zoning/teleporting/rezzing, the heal will go back to yourself
- If you're casting and the target dies before it completes, the heal will go back to yourself, even if they're still visible on the map - see image