Hi Jose Cruz,
It seems that the issue at
https://github.com/wazuh/wazuh-splunk/issues/1352 was due to an incompatibility between the Wazuh server version 4.3.5 and the application designed for version 4.3.3.
The problem was that Splunk 9.0 had deprecated the HTML panels. The panels of the Wazuh application were not going to be compatible with future versions, but it appears that the application still works on Splunk 9.0.2 despite using a deprecated SDK. In principle, there shouldn't be any compatibility issues between Wazuh 4.5 and Splunk v9.0.2.
Please note that we haven't officially supported Splunk 9.0.2 yet, so we can't guarantee that the application will work as expected.
I would recommend checking the official compatibility matrix for Wazuh and Splunk:
https://github.com/wazuh/wazuh-splunk/wiki/CompatibilityHope this helps!