Thanks for the notice, this is/was due to a bug in the CoronaFp interface. It reports that an IR is going on even when interactive_passLimit is reached and the renderer has stopped. No need to say that I have already reported this and other issues regarding wrong data when querying the interface. I added a “manual” check to get around it, hope it works for you as expected now (v0.08 in the first post).
not entirely sure about what you mean. It should work in IR and PR/IterativeR. Or do you mean that you would like to have an indicator in an extended viewport/docked IR session? If so, that’s not possible with this script, sorry.