In the config I set both "No. Start Unlocked" and "Max Invo Size" to 0 and I am still able to put items in my inventory. I am using Forge 10.13.2.1286 and InfiniteInvo 1.0.25.
Funwayguy commented
Facepalm... looks like I dun goofed a bit of code. I'll fix that up soon