Hello. I wanted to post a DX CLUSTER SPOT in the version 12.0.0 but I have a bug.
Here, my DXCLUSTER configuration :

I made a test :

Result is good. we can see : DX de F4FFD 14105.0 Varac, etc, etc...
But, when I click on "SPOT" button in the main window :


The result is not good and we don't see the message "DX F4FFD 14105.0 FR4AW, etc... and the spot is not posted on the DX CLUSTER.
So. The TEST button is good but the spot button doesnt work proprely.
Did I do a mistake during my configuration ?
It seems like this DX Cluster has a rate limit - you cant report too often from the same callsign/IP.
I tested it also and noticed. if you wait, try to report again without doing a test before and for me it worked fine