Hi, I am not sure what is happening but I found that this bug is reproducible on my machine.
Steps to reproduce:
- Add Foundry stack
- Add any Carpenter Banner
- Add Carpenter Footer 4
Result: Reveal Pro stack contents fail to display, and some other contents as well, also break Equalize stacks elsewhere in page if exist (unable to get equal heights).
The Reveal Pro stack seems to be broken with this 2.3.9 update.
Edit: removing Reveal Pro stacks makes everything show up and Equalize works again.