With BA connected and a XT1144 (firmware 8.5.47) I can not send the content of an userVariable via serial send commend (no EOL). The output is $$midi2$$ and not the content of the variable (in my case 48). By the way there should be no EOL on the output but the output is in hex: 24 24 6D 69 64 69 32 24 24 0D
The 0D should not be there.
I get exactely the same output with the send serial string (EOL) command.