If you run the attached case, you will see that the _devc values of HRRPUA are being written. But when you look at the case in Smokeview, the boundary values report 0.

Archive.zip

Note that @johodges reported this worked correctly in an older version of Smokeview, circa 6.8.0

When I go in and reset the bounds, things look reasonable, see below. But notice that the computed bounds (see background terminal) are 0.