Confirmed in 19w09a. I hope it is fixed in Wednesday's snapshot as it make it impossible to play (at least on multiplayer). Besides this, I hope they will force a light recalculation after updating to the new snapshot, so I will not have to manually break and replace torches again. It is happening like 2-3 times a day and I have to go in creative and replace everything, or use fill to set the torches to some obnoxious block and then back to torches. Really annoying, especially because it is not a visual only bug.
Can confirm on 19w07a, Windows 8.1. Happened when generating a brand new world and crashed after about 10 seconds. I was on an island in the middle of the ocean.
This issue is getting annoying.