Inputting phone numbers in an international format (like +1.888.888.8888) issues

Inputting phone numbers in an international format (like +1.888.888.8888) issues

Now getting an "Invalid Phone Number" error when entering in an international format (like +1.888.888.8888).  This is a severe limitation.  Previously there was no problem with a phone number entered in this format......Why did this change???