If you're getting the "0 keys processed. 0 keys saved" error message when adding keys to the License Server, it means that you are trying to enter the License Information in the wrong format.
Correct format is:
1. Copy full content of License Certificate Email (recommended).
2. Use the following pattern as shown on screen:
Examples of wrong pattern:
1. "Username" is written as a single word:
2. "User Name" and "License Key X" are not written at all: