How do I fix missing Drummer library in Logic Pro?

Have you tried downloading ALL available sounds?

~ThatLogicProGuy

To download all available sounds in Logic Pro 11, open the Logic Pro application, go to "Logic Pro" in the menu bar, then select "Sound Library" and choose "Open Sound Library Manager" - from there, you can select all the available content and click "Install" to download everything. 

Key steps:

• Open Logic Pro
• Go to "Logic Pro" in the menu bar
• Select "Sound Library"
• Choose "Open Sound Library Manager"
• Select all desired content within the Sound Library Manager
• Click "Install" to download 

That screen shot of Drummer Editor looks just fine. It is the new "Session Player Drummer" look new to Logic Pro 11.

Do me a favor and click on the name "Pop Rock" (next to Drummer acoustique) and you should be able to find all of the Drummer Options there.

Be sure all sounds are installed. Sometimes it looks like you have everything installed but once you open the Libraries in Sound Library Manager, you will find a couple of missing options.

~ThatLogicProGuy