Hi again - as far as I understand @usfreak13, he already applied the solution to 2.29 bug in trcaker capture, and it worked until upgrading to 2.31.1
- If the config values is still allowing the [] characters this might not be the problem.
There is another possible problem as I see you are on windows, and presumably use tomcat 8 or newer. Check the solution on this thread: Tracker capture app not loading dhis2 version 2.30 - #14 by sohel
If this does not solve your issue, we need some more detail. If you can try reloading the tracker while keeping the browsers development tools “network” page open, the network calls and responses will be recorded in full detail. If you send all the detail on the response and error messages for the failing network calls this will help us dig deeper.
Markus