LNC can be very finicky. We haven't changed anything on our end, but it's worth a hard refresh/cache clear of your browser to see if that fixes things.

In general, if you don't have a public ip/tunnel, I recommend using NWC for sending until something better comes along. afaik Lightning Labs has lost interested in LNC (and were never very interested in general applicability).

Either way, I'll give everything a troubleshoot tomorrow just to make sure. Do you know which version of Terminal/LND you're running?