Redstone Lamps not Outputting Light

Please provide a screenshot with the debug screen enabled (hit the F3 key) demonstrating the issue.

Reproduced this today with redstone lamps activated by an inverted daylight sensor, while the chunk was unloaded. When I came back to the chunk, the redstone lamp looked active, but did not output any light. I attached a screenshot with debug screen, note the lighting: 0 block.

The first 2 images are duplicate of MC-80966.

Please check if that's still an issue in the latest 1.14 development snapshot.