Grayed out MOX button (occasionally) with remote footswitch

Hi folks,

Having a strange issue with SSDR v3.1.8 and a Flex 6500 running Windows 10.

Working remote to the radio (LAN), no DAX, RIT/XIT set, using a physical foot-switch (wired to RTS/CTS) to key the TX, i can always key the TXer but sometimes it keys with the MOX button grayed out (and hence no audio/RF out), and pressing it again a second later keys the TXer fine with audio and RF, no problem.

I can see others have had the issue some years back..

https://community.flexradio.com/flexradio/topics/occasionally-no-tx-audio-with-footswitch-ptt

Pressing the MOX button via mouse works perfectly, so there's no RF in the shack or other weirdness going on, this only happens with the footswitch. Tested with a multimeter and the footswitch seems to make good contact..

Is there perhaps still a bug floating around on this? Wondering if others have seen this with a physical footswitch?

Other than that, it works great, but it's annoying having to fight the footswitch to respond to a QSO.

I use N1MM and WSJT and have exited those apps as a test to make sure they weren't interfering, but it looks like a pure SSDR issue.

Anyway, hoping for some help!



Thanks,

Chris.