Setting off a red firework with the twinkle effect causes the game to crash after the burst animation finishes. Firework charge was made with red dye, gunpowder and glowstone dust. Tested several times as both guest and host of world. Have not tested with other colours.
Thank you for your report!
We're actually already tracking this issue at MCPE-89115, so I will resolve and link this ticket as a duplicate.
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