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Bug
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Resolution: Fixed
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Minecraft 1.4.2, Minecraft 1.5, Minecraft 1.5.2, Minecraft 1.6.2, Minecraft 1.6.4, Minecraft 1.7.10, Minecraft 14w30c, Minecraft 1.8, Minecraft 1.8.1, Minecraft 1.8.3, Minecraft 1.8.4, Minecraft 1.8.5, Minecraft 1.8.6, Minecraft 1.8.7, Minecraft 1.9.4, Minecraft 16w20a, Minecraft 16w21a, Minecraft 16w21b, Minecraft 1.10 Pre-Release 1, Minecraft 1.10 Pre-Release 2, Minecraft 1.10, Minecraft 1.10.1, Minecraft 1.10.2, Minecraft 16w32a, Minecraft 16w32b, Minecraft 16w33a, Minecraft 16w35a, Minecraft 1.11.2, Minecraft 1.12.2, Minecraft 18w20c, Minecraft 1.13.1, Minecraft 1.13.2, Minecraft 18w48a, Minecraft 18w48b, Minecraft 18w49a, 1.14.4, 19w39a, 19w40a, 19w41a, 19w42a, 19w44a, 1.15 Pre-release 1, 1.15 Pre-Release 2, 1.15 Pre-release 3, 1.15 Pre-release 4, 1.15 Pre-release 6, 1.15 Pre-release 7, 1.15.1 Pre-release 1, 1.15.2 Pre-Release 1, 1.15.2 Pre-release 2, 1.15.2, 20w06a, 20w07a, 20w08a, 20w09a, 20w10a, 20w11a, 20w12a, 20w21a, 1.16 Pre-release 2, 1.16 Pre-release 3, 1.16 Pre-release 5, 20w28a, 20w29a, 20w30a, 1.16.2 Pre-release 1, 1.16.2, 1.16.3 Release Candidate 1, 1.16.3, 1.16.4 Pre-release 2, 1.16.4
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None
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Confirmed
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Commands, Entities, Rendering
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Normal
Summon a Primed TNT using
/summon tnt ~ ~ ~ {Fuse:127}
As the fuse is set to 127, the Primed TNT will explode after 127 ticks. This is as expected.
However the client isn't informed of this change and will show the TNT animation exploding at the normal 80 ticks. This also removes the TNT entity from the client side.
/data merge entity @e[type=tnt,limit=1] {Fuse:127}
works on the invisible TNT to extend the fuse, but will not render it back as the client has already deleted the entity.
TL;DR Server doesn't inform client of fuse length changes, TNT animation will always end at 80 ticks.
To reproduce in 16w21b, simply summoning a TNT with Fuse:127b won't work. You must continuously use /entitydata to stop the Fuse value from reaching zero.
Example: run this in a repeating command block:
/data merge entity @e[type=tnt,limit=1] {Fuse:127}
Code analysis by marcono1234 can be found in this comment.