Hi extensis,
I tried the new update to 1.7.10 still the same problem. I finaly gave up and reverted to a prior version 1.6.5. This fixed my problem. Now the options are completely functional.
Exact same problem!?!? What just happened ???
All options disappear after a while. Tried updating the page, reloading the page, clearing browser cache but nothing works. I have another dev site using version 1.7.6 and it works fine.
I’m having the same problem. Seems the latest updates of WordPress may be the culprit. Everything was fine last week until we applied the latest update. I installed the latest update of the Calendar with no change. Still looking for a solution.