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Bug
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Resolution: Won't Fix
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None
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24w33a, 1.21.1, 24w36a
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Community Consensus
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Resource Packs, Text
Performance
When modified the texture of the character \u0000 by "bitmap" type in font/<FontName>.json of a resourcepack, and output \u0000 in the game, it is displayed as a blank box like this:

Reproduce
Load the resourcepack Test.zip
attached, and run the command:
/tellraw @a {"font": "minecraft:test", "text": "\u0000\n\u0001"}
Then you'll see a blank box and an iron ingot in the chat frame like this:
The content of file assets/minecraft/font/test.json in Test.zip
is shown below:
{
"providers": [
{
"type": "bitmap",
"file": "item/iron_ingot.png",
"height": 20,
"ascent": 20,
"chars": [
"\u0000"
]
},
{
"type": "bitmap",
"file": "item/iron_ingot.png",
"height": 20,
"ascent": 20,
"chars": [
"\u0001"
]
}
]
}