Help needed: Random TimeoutException

Hello.

I'm using SBA 3.5.1 with Spring Boot 3.5.3 / 3.5.4 both in a servlet and reactive environment.
The registration and service discovery happens through Eureka.

From time to time, quite randomly to me I must say, I get the following STATUS_CHANGE in the UI

{
    "statusInfo": {
        "status": "OFFLINE",
        "details": {
            "exception": "java.util.concurrent.TimeoutException",
            "message": "Did not observe any item or terminal signal within 9000ms in 'log' (and no fallback has been configured)"
        }
    }
}

which the basically puts my app offline to just put them back online on the next run of the check.
Can someone please provide some support on this?
I've opened https://stackoverflow.com/questions/79655549/spring-boot-admin-tons-of-timeouts in the past, but I got no replies in there at all.

No repository file, test, or entry point is named. Start by reproducing the reported STATUS_CHANGE with Spring Boot 3.5.3 or 3.5.4, SBA 3.5.1, and Eureka in both servlet and reactive environments, then trace the 9000ms timeout and status transition. Done means the cause is identified and the application is not incorrectly marked OFFLINE, with regression coverage added.