AdiIRC

I've tried the following code and the variable values are no longer updated in Tools|'Edit Variables' (old values are displayed instead).
Current version AdiIRC 4.0 beta x64 build 2020/09/30 (win10).
Last working version I tested: beta 3.9 2020/09/24 ---> my guess is the issue must be introduced in the 3.9 2020/09/30 beta .

alias myregex2 {
  return /.+/i
}

on $*:TEXT:$($myregex2):*:{
  set %temp2 $strip($1-)  
}