Not important:
I've been testing different ways to try and make a statue with 6-sided bark logs and decided to use command blocks that turn into them when I place them.

Important:
Despite repeated attempts any time I try to /schematicaReplace (current block of the schematic) command_block it keeps saying "Replaced 0 blocks." It's recognizing that "command_block" is a type of block but will not make it something that can be used in the schematic. To test this I took out command_block and threw in dirt and it changed it to dirt. I just don't understand why command_block isn't something it will change the blocks to.

I've also discovered issues with the replacement command when trying to replace dark oak but it may be something different