Command+Period not accepted in Trigger Other Keyboard Shortcut

Not sure if this belongs here or in Bug Reports, but I'm having an issue under Keyboard (and any other device for that matter) where Trigger Other Keyboard Shortcut will not allow me to input Command+Period -- it will allow me to input it into the Shortcut field that triggers another key command, but not into the Trigger Other Keyboard Shortcut area. This is a very useful Pro Tools quick key for Stop Recording and Discard Take -- any suggestions on getting this to work? I even tried copy pasting the symbols from a text document into the field, and it just converted it to "A"
I should also add I'm working on an older system in Mac OSX 10.9.5 using BTT 2.05

@Andreas_Hegenberg any suggestions on this? Love this program and this is the first snag I've hit in functionality with it.

Maybe some other app is blocking that shortcut from being recorded in BTT?
Either try to find and quit that blocking app or copy & paste this json into BTT:

{
  "BTTTriggerClass" : "BTTTriggerTypeKeyboardShortcut",
  "BTTPredefinedActionType" : -1,
  "BTTPredefinedActionName" : "No Action",
  "BTTAutoAdaptActionToKeyboardLayout" : true,
  "BTTShortcutToSend" : "55,47",
  "BTTAdditionalConfiguration" : "1179658",
  "BTTEnabled2" : 1,
  "BTTKeyboardShortcutKeyboardType" : 62,
  "BTTUUID" : "5A9BA3C1-7BCC-4D77-9C45-A1C8D0E4A5E5",
  "BTTTriggerOnDown" : 1,
  "BTTNotesInsteadOfDescription" : 0,
  "BTTLayoutIndependentChar" : "x",
  "BTTEnabled" : 1,
  "BTTModifierMode" : 0,
  "BTTShortcutKeyCode" : 7,
  "BTTShortcutModifierKeys" : 1179648,
  "BTTOrder" : 4,
  "BTTDisplayOrder" : 0,
  "BTTAutoAdaptToKeyboardLayout" : 0
}