TYPO3 backend, development mode and logs

General
1

We have a TYPO3 CMS multidomain.
Some users from an office and domain A cannot access correctly to backend. Some components does not load and it is not functional. I cannot reproduce the problem from my site office.

Some users from the same office and domain B do access to TYPO3 backend but with a trick.
We have realized that in “development mode” the problem does not occur, so we have made a patch that calls regularly every 3 hours to change to development mode on domain B but that is not the solution.

Is there any way to debug the problem?
Any additional Cloudflare log to try to figure out what is causing this.

2

Error messages and screenshots.

3

If things begin to work in Development mode, it sounds like a caching and or page rule cache issue. The users having the issues are probably caching rules that break the site.

4

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