OK, then it seems that, that would/could throw your main program out-of-wack if you don't realize the includes stuff was placed in the main program first (if that is where they were placed).
Then to place any runnable code , intended to be used as subroutines , in included files, should be:

'TX_RX file

var1 var byte
var2 var word
etc

goto around_code

code and subs to be called later......

around_code

????
don