I was receiving assistance from one of your colleagues and as we were attempting to set up a View together we continually got this message (There were no posts found to display for this View's query.). At her suggestion we also tried creating a view using a regular WordPress post but got the same message.
While troubleshooting the issue we disabled all other plugins. She suggested that I submit a ticket regarding this issue.
We were using the Custom Post Type - Association Members
The website is hidden link and admin details are:
Username: toolsetsupport
Password: 8tc0VOql(tZJiJR7M9e97D^x
This is a staging site so you can change anything you need.
This happened when your colleague was leading me through creating a view. When I get the message - There were no posts found to display for this View's query - it is not possible to save the page so there is no page I can point you to.
If you create a new page, add a view block, create a new view with search, use the CPT Association Members, then you can see what happens.
It seems to be an issue with the site itself however I can't pinpoint the exact issue.
However its limited to just the block editor not allowing the posts to be found. Using the classic editor for view works fine. If you take a look at my example setup here. hidden link
You can see that i've created a search and its working fine so what you can do is to use the classic editor to create your searches.
Secondly if you don't have a lot of data on the site or are just starting out you can reset your wordpress site completely and then check to see if the same issue remains.