I have been running Linux WSJT-X on a Ubuntu machine for several months, with excellent results.
Recently, WSJT-X stopped decodes, even though there are very good signal showing in the waterfall.
I am using mode, FT8 and Decode:Deep. I tried the other Decode type, same result.
I checked the timing on the computer, and it is has a very small time error. The timing looks good in the waterfall, too.
I removed and re-loaded WSJT-X, no decodes.
The "Activity Monitor", no longer shows a spike up in CPU usage, indicating no decodes
Any suggestions, on what to check/do next?