I have seen decode hangs multiple times with v2.1.1 and I have reported that previously. In all cases the time keeps updating, and widegraph stays active. The only way I have found to recover is to restart WSJT-X. I attempted to find an association with wave files spanning the decode hang time. No wave files reproduced the problem reliably although once out of multiple attempts a wave replay did cause decode hang.
I do not believe the decode hang has anything to do with the audio that was being received. It can happen during the night on a band that has no activity. I suspect it happens because the CPU is busy or a file cannot be accessed. It always, or almost always, happens when I'm away from the computer. I thought for a while that it was associated with an automatic file backup that runs late at night but I think it has also happened when the backup is not active. I've been saving screen shots to see if there is any clue in the displayed information but nothing found yet. In case it matters - Win 8.1 64 bit. Andy, k3wyc
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