The file contains an extra comma after the banner image file path, this should not be there and causes the mod to not be loaded by Forge.

[19:20:45] [main/ERROR] [FML]: The mcmod.info file in practicallogistics2-1.12.2-3.0.4.jar cannot be parsed as valid JSON. It will be ignored

Just ran into this. Seeing as this is fixed in master, would you please do a bugfix release? ^^