I am trying to: Create a WooCommerce product template using the block editor
Link to a page where the issue can be seen: hidden link
I expected to see: Page elements such as the product image and price should be visible as I edit the page blocks
Instead, I got: Loading... in all the places where elements should be loaded. When I refresh the page, they load correctly, however, after I make a few edits, they de-load and leave blank space with "Loading..." in their place.
Sorry for the delay getting back to you, we've had all sorts of problems on toolset.com and I'm only now able to reply.
What you are describing doesn't sound right.
But! I just updated my local WC test site to WordPress 6.3.1 and the latest plugin versions (including WooCommerce) and I see something similar.
I could see the UI of various blocks I added to the product template, and after updating many of them switched to "Loading..." and remained that way.
It looks like one of the recent updates—possibly of WordPress itself—has introduced this issue, so I'll escalate it to the developers for them to investigate further.