I just attempted to update an existing test system. It was using 2.11.2 under Java 1.8 and Tomcat 8. When I tried to add a new Style, and using the 'Copy Existing' option it is not working (no reaction). I then tried checking setting and when submitting a change to the global settings I am getting a 400/CORs return (both via httpd proxy and direct to tomcat) from the same system. Shifting back to V2.15.2 and it is fine. The problem exists even with the out-of-box data store. basic layer rendering seemed to be OK as much as I tested it.
Any thoughts or things needed to diagnose this?
The original problem that lead me down this path is using the ReCode capability. I have used this in the past with no problem, but today I am trying to use it with a data column that is an Integer (vs String). It is not working (objects are not rendering) when using recode. I know the values present in the DB (0-5) are all represented in the lookup array.