I have seen the same anomaly where the filter is symmetrical around the set frequency instead of offset to the sideband. This is not consistent - sometimes it comes up correctly.
The filter can be changed to the correct configuration by just grabbing the far edge(s) of the filter and dragging it to the desired width, but this should not be required.
I have also noticed that using JTDX via TCI, it seems that JTDX always resets the mode to SSB, and trying to manually set it to DIGU via the UI does not work - it just stays (or returns to) SSB.
Anyone else notice this?
Tom N0BS