Weird Glowing Model

Hey. First of, sorry for my english.

I'm building a 1:1 scale replica of the World Trade Center in minecraft. To add realistic stuff i've build the tridends in blender. they are in mincraft but the models

is glowing. The fasade above the tridends has the same colour like the tridend wich is glowing. (I've build the fasade with blockbench)

https://imgur.com/CkptRXM

https://imgur.com/yvSpJTi

https://imgur.com/DHr0Jq3

where can i fix this?

Thanks!