Missing config options

[lkwetter]

I just upgraded CiviCRM to the latest version with Drupal 7 on a duplicate test installation and now when I select a time slot in the "Select Resources (Step 1 or 3)" screen and the pop-up appears, I find no options available in the "Configuration" selection drop-down. I cannot complete a booking.

I have options set up that have been used a long time, but interestingly, if I edit an option and then save it, it becomes immediately disabled and the "enable" checkbox is grayed out, not allowing me to enable it.

I have gone to the database and forced it to be enabled in the booking_config_set table, but every time I edit it in CiviCRM, it becomes disabled again.

I created a brand new config set, but it behaves the same way and still nothing displays as a configuration drop-down option when I try to make a booking. I'd just like some idea what the problem might be and where I might start to resolve this?

I cannot upgrade to CiviCRM 4.7.24. Civibooking breaks when I do it in a duplicate test version. I am still using the CiviCRM version just below 4.7.24. I am using the latest stable version of Civibooking for Drupal 7 (Version 1.5). I am using the latest version of Drupal 7.