Kibana is reporting the following:

[...] runtime error: invalid memory address or nil pointer dereference goroutine [...] /build/middleware/user.go:36 [...]

And that line contains the following code:

userIDFromContext = xRhIdentity.Identity.User.UserID

We recently upgrade the "platform-go-middlewares" to a new version which makes the User struct to be a pointer, so that's probably the cause of the issue.