AX1800 WiFi Router R6700AX port forwarding to async ports

Router Firmware Version V1.0.14.134

I'm trying to set up Port Forwarding for external ports 1024-65534 to internal port 443. I unchecked the button for ''Use the same port range for internal port' but it tells me 'Internal and export ports mismatch Internal port range much have the same sequence of ports as in the external port range.'

What gives? Router is up to date, I just a full reboot. I can't have 443, 1024-65534, in both areas, since that's not what I'm trying to do. I also cannot have 443 to 443 because no external client of mine would connect on port 443, they would have a high random port > 443. I tried with 443 <> 443, and in the logs I see when I'm trying to connect inbound from external on high random ports to port 443, but the traffic is stopping at this router

screen shot of the error message and web config attached