Good question. . . I did not used this exact setup for ages (for known reasons). I can test it in the latest snapshot, but I thing from other experiences it may have gotten a fix shomwere down the line.
Light updates should be not existent as the test setup has a big, wide roof above itself.
Yep. This issue is most likely got fixed sometimes ago. Cannot reproduce in latest snapshot (24w45a). Render works fine. Not as smooth as it once was, but runs just fine.