With the Performance settings "cpu settings > mirror reflections" enabled, the sky reflection on the water is broken. Traces are useless here, because the issue is somehow consistent on other drivers as well, but don't show there if the game runs on them.
-- GitLab Migration Automatic Message -- This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity. You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/mesa/mesa/issues/1106.
Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.