I tried setting the "advanced/caching" option to "no caching" in the "custom" module where the {modal} tag is used, but that makes no difference.
The content of the modal is an article. Not sure if the caching can be disabled in an article.
The caching matters in the area where you place the {modal} tag. Not what you open inside the modal.
Can you give me (super) admin and (s)ftp access so I can take a look?
And tell me on what url I can see/reproduce the issue.
You can use the 'Confidential information' button in the forum editor to hide sensitive information.
It seems to be working fine.
The modal showed on the first 5 views.
Then it didn't on the next 4.
Then it did on the next 6.
Not on 4.
It did on 6, etc...