NMS Modding Help

[GorkusGorkusGorkus]

Hi. I'm not new to modding, but new to modding NMS and I have a question. I have created a mod pak file form the Inventory table that works fine. I wanted to add some changes to a second table, the Reality Product Table. But as soon as I load the file into the Modding Station project folder(aka copy to project path), any mod I pak crashes the game at startup. I don't even have to open the 2nd file let alone make any changes. As soon as it's in the folder, all subsequent pak files crash. If I take the file out of the folder and recompile, it works. I am clueless as to what's going on. There was an update not too long ago, so I thought to re-unpack the original files, but the utility that performs that task finished immediately as if there were no changes. Perhaps I need to delete all the unpacked files and start over? That brings up another question. If one makes a mod and Hello Games comes out with an update, does it invalidate everything you've already done to that point? Anyway, some advice would really help as I'm currently out of ideas on what is going wrong. Thanks in advance.