What might be happening?

[EA3GCV]

Hi Erik,

Effectively the problem is because you are using the same UDP Port either in JTDX and WSJT-X. Swisslog is receiving all traffic from both programs at once and that's why you see the QSO Entry window chaging callsign all the time.

I suggest you to use your main FT8 program (I believe in JTDX) as the Main instance in Swisslog (port 2239) and set another port in WSJT-X (i.e. 2240) and set this in Swisslog as a Log QSO instance. This way when you save QSOs from WSJT-X will be saved in Swisslog. It's the best way to use both programs at once and don't miss any saved QSO.

73