It seems that AHP is "pretending" to download to the CM19A, even though it has no internal memory (that option should not be available when using the CM19A).
Are any of your timers marked as "Store in Interface"?
My thinking is that if the timer or macro is marked as "Store in Interface," AHP won't run it (thinking the interface is doing it). However, with a CM19A, the interface CAN'T run anything by itself, so those timers or macros don't run.
I suggest checking your timers and macros. If you find any that are set to "Store in Interface," uncheck that option (for timers), or change to "Run from PC" (for macros), then save, and see what happens.
The more testing we can do to identify the specifics of the bug, the more information we (and by that I mean "I") can pass along to the developers.