I added the auto-donations to my own script from the cross-bot, and the way I got them to work reliably was to increase the search area within the clan chat window. See code below. The only things changed were the $DonateTroop pixelsearch coordinates.
Code:
Func DonateCC()
If GUICtrlRead($donatec) = $GUI_CHECKED THEN
While 1
SetLog("Donating for Clan Castle's Troops")
Click(10, 334)
If _Sleep(10000) Then ExitLoop
Click(189, 24)
$DonateTroop = _PixelSearch(112, 150, 122, 685, Hex(0xC0E460, 6), 10)
While IsArray($DonateTroop)
SetLog("Found donate button on " & $DonateTroop[0] & "," & $DonateTroop[1])
Click($DonateTroop[0], $DonateTroop[1]) ; click button donate
If _Sleep(10000) Then ExitLoop
Click(($DonateTroop[0]+200), ($DonateTroop[1]-20),5) ; donate archer
If _Sleep(10000) Then ExitLoop
$DonateTroop = _PixelSearch(112, 150, 122, ($DonateTroop[1]-20), Hex(0xC0E460, 6), 10)
WEnd