Raids sometimes don't start; raid bar disappears without raiders spawning

The bug

Sometimes, after a raid bar is fully charged, it simply disappears, no raid horn sound is played, and no raiders spawn.

Videos

• From MC-155226: Minecraft Raid Bug 2.mp4
• From MC-175755: Minecraft 20w12a - 单人游戏 2020-03-23 16-51-39.mp4