Thanks for the quick and detailed answer!
It works perfectly, I ended up changing off the bat file for an autohotkey script in the end so there is no need for an artificial 1 second delay as ahk can look for the window named “auto-trace” and send the keystroke the moment it appears.
If anyone ends up needing it later on here is the AHK script I used (it times out after 3 seconds if the script gets stuck and sends an error message saying it timed out):
WinWait, Auto-trace, 3
if ErrorLevel
{
MsgBox, WinWait timed out.
return
}
else
Send, {enter}