Only 1% of the people that I know who use mIRC actually script. Out of that 1% maybe 5% at the most script for multi-network connections. So yeah, maybe it seems like noone else gets the issue, but if noone took their car out of the garage noone would have any car issues either.
lol Rock, quite right ...
I have presented all instances of scid in my script. And it has only happened once. Years ago I saw this error a number of times with a different script. If it happens again I will echo the scids for you.
As for basic steps to debug, I know every line of my script and what it does so I know it isn't getting connection 25 from me anywhere.