Simple AHK script conflicts with Ditto

[stoneEater]

Hi!
I use this script, with replaces "ddd" with the current date.

Code: Select all

:R*?:ddd::
FormatTime, CurrentDateTime,, 20yy-MM-dd
SendInput %CurrentDateTime%
return

The problem is that when i run Ditto at the same time as this script, the script pastes things from my clipboard, instead of the current date.
What could be the reason for this?