There appear to be a few similar topics, but couldn’t find anything with a solution. When I go to Pro > Global Blocks there should be a list of all the Global Blocks we have created, but instead it says ‘No Global Block Found’. I tried creating two new blocks, but even those to do not show up after saving, exiting to the Dashboard, and then going back to Pro > Global Bocks.
The same is happening to both staging and live sites. It doesn’t appear to be plugin related (deactivating all plugins did not make a difference).