I think you hit it right there. AHP thinks it is downloading and the software sure looks like it is doing just that. Unfortunately for some reason my system still will not operate and follow my schedule. I do not use any macros or dawn to dusk setting.
You said the problem started about a week after you updated AHP to the latest version.
Did you make any changes to your timers during that FIRST week? (If not, then AHP wouldn't have tried to "download").
Do you know what version you were using before (This may be a newer bug that came in since the previous version).
I assume you have a bunch of timers. Have you added more in the past week? (otherwise, why were you trying to download to the CM19A, anyway?)
There is no point downloading to the CM19A, since AHP can't actually download to it, and is only pretending.
Go into the "Hardware configuration", and change the dawn/dusk resolution the the highest interval (I think 8 days).
then try "downloading" again.