AdiIRC

I am unable to reproduce this.

Remove all the AdiIRC default menubar related menus, then paste the code and click into the Commands menubar item button, there is a missing - from the menus.

Try set in menus under menubar these:

$iif($status == connected,Join channel):/join #$$?="Enter channel name:" 
$iif($status == connected,Part channel):/part #$$?="Enter channel name:" 
$iif($status == connected,Query user):/query $$?="Enter nickname and message:" 
$iif($status == connected,Send notice):/notice $$?="Enter nickname and message:" 
$iif($status == connected,Whois user):/whois $$?="Enter nickname:" 
$iif($status == connected,Send CTCP)
.Ping:/ctcp $$?="Enter nickname:" ping
.Time:/ctcp $$?="Enter nickname:" time
.Version:/ctcp $$?="Enter nickname:" version
$iif($status == connected,Set Away)
.On:/away $$?="Enter away message:" 
.Off:/away
$iif($status == connected,Invite user):/invite $$?="Enter nickname and channel:" 
$iif($status == connected,Ban user):/ban $$?="Enter channel and nickname:" 
$iif($status == connected,Kick user):/kick $$?="Enter channel and nickname:" 
Ignore user:/ignore $$?="Enter nickname:" 
Unignore user:/ignore -r $$?="Enter nickname:" 
Change nick:/nick $$?="Enter new nickname:" 
$iif($status == connected,Quit IRC):/quit

And under in the Scripts editor use that code:

menu * {
  -
  test 1:noop
  test 2:noop
  test 3:noop
}

If you cannot reproduce it tell me to make an other example.