how do I stop Blockbench from changing the variable names to "missing" when exporting?

[zinc kraken]

Basically I'm making a resource pack that adds models that only use in-game textures (there are no textures in the resource pack itself), however when I copy some cubes from one file to the other in blockbench and try to export it all variable names get changed to "missing" and the game render the missing texture (purple and black), how can I fix that?

[vague mesa]

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[coarse bluff]

when you copy cubes from one project ot another you don't copy the texture that is applied to it

You need to use File > Import > Import Open Project so it copies the applied textures too

[zinc kraken]

That worked, thank you!