I have. It sometimes seems to happen shortly after I change a palette or image mode. However, other times it happens when I'm just viewing the image looking around at stuff, and not changing any settings. At first I thought it had to do with motion maybe wiggling the USB connection lose for a moment, but it's also happened when I'm holding it perfectly still. The app itself doesn't lock up. I can still navigate the menus, but the camera stops sending video, so the last frame sent to the camera remains displayed indefinitely. This can be fixed by unplugging, and then plugging back in the Seek Thermal camera. Note, this is happening on my phone with the official app, not the result of me using it on a PC with 3rd party software.
Anybody else have this issue? And if so, has anybody figured out the cause of this bug yet?