Ok, version 1.1.30 is now making its way up to extras-devel, with mostly fixes to the intervalometer. I think what may have been happening is that I didn't have enough of a delay between the simulated button press and the simulated button release. (Then again, it could just be that Qt timers just aren't reliable when you lock the screen. I'm probably going to have to do some more homework here.) Well, I've done both -- I've put the hardcoded delay feature back onto the "Camera" panel, and added a configurable initial pause to the Intervalometer panel. This has happened in the past when Pierogi's control thread gets swamped with command requests, and ends up becoming a zombie process in the background. I thought I had all that fixed, but odds are that playing with the intervalometer is causing that to happen again. (It shouldn't be anything to do with the vip1853 keyset...)