On the block maker screen, pressing the textures folder button does not open a folder.
I am also not clear on how to apply textures to a block after reading the wiki, but that is more than likely not a bug and i am just stupid.

Mod Versions:

• Mod Version [e.g. 1.5.0.1]
• MC Version [e.g. 1.18]

Is the texture namespace also dg?

Did you have the namespace field or texture namespace field filled out?

Both, yes. Though i may be placing the texture in the wrong spot. Its something like this .minecraft\config\custom_blocks\custom_blocks_resources\assets\dg\textures\block, with dg being the name space. I just put the 160x160 texture in the block folder.