I talked to technical support at Logitech this morning about the Note Pro 12.2 folio keyboard case and the UltraSlim BT mouse not working after the lollipop update. They acknowledge the issue is at their end and are working on a software upgrade to fix the problem. I am on the list to be notified when the fix is available and will update when I hear more.
UPDATE:
Here is a first response from Logitech support regarding the problem with the Pro 12.2 with 5.0.2 and the Logitech Pro folio keyboard.
"Dear Bruce E,
Thank you for contacting Logitech Customer Care.
We already have confirmed that this Logitech PRO for NotePRO 12.2 and TabPRO 12.2 is having an issue with the new version of the android OS which is the lollipop [5.0.2], we are still waiting for the resolution that our escalation team will obtained from the investigations that they are doing as of now. We will notify once we have the resolution of the problem.
To contact us by phone or obtain additional information (FAQ's, Forum, Manuals, etc.) please visit support.logitech.com
Best regards,
Logitech Customer Care"
Clearly, Logitech recognizes the issue and is working to address it.
UPDATE 2 (7/17/2015)
A few minutes ago I received this update on the problem from Logitech Support:
<<<
Dear Bruce E,
Thank you for contacting Logitech Customer Care.
We would like to inform you that the issue that you are experiencing with the Logitech PRO for NotePRO 12.2 and TabPRO 12.2 when it is connected to your tablet with android version 5.0.2 has been escalated to our product specialist and was reported to Samsung, they already figured out that this issue happens because of the said update for the android operating system.
Samsung have urgently updated the binary file and the OS will be updated soon. There will be a software to be release to resolved the issue but Logitech cannot provide any time frame for its release because Samsung is the one responsible to it. For further questions about the software update please contact Samsung and also let them know the issues that you are having after the update.
To contact us by phone or obtain additional information (FAQ's, Forum, Manuals, etc.) please visit support.logitech.com
Best regards,
Logitech Customer Care>>>>
While there is no specific date it seems that Samsung is actually working on the problem and promises a fix soon.