I am trying to: edit an existing content template for a view that was created using Beaver Builder
Link to a page where the issue can be seen: hidden link
I expected to see: My full template as I did previously (hidden link) - example. Had a much more detailed content template, Tabatinga Locations, but it seems to have completely vanished in attempts to regain access to the editing.
Instead, I got: a blank beaver editor page which cannot have any edits or any new modules/rows added to it. Previously this worked fine...]
I have applied any fixes from Errata that may have been related without any luck. I have also tried downgrading Beaver, Toolset plugins to previous versions that worked, but they also no longer work in editing content templates more than once.
Creation of a new content template on a view will work correctly once, when returning it no longer works.
I have a local site for testing Beaver issues and I couldn't reproduce anything like you are describing, there were no problems editing and re-editing existing or new Views Content Templates designed with Beaver Builder.
You have quite a few plugins installed, could you test for conflicts by de-activating all plugins except Types, Views, and Beaver Builder, and also switch to twentyseventeen theme. Try editing existing Content Templates designed with BB or creating a new one and then editing it, and see if you still have the problem.
If it works normally you can try re-activating your plugins (and theme) and using a process of elimination to determine which one is creating a conflict.
Let me know what you find and we can see how to proceed.
