How to reproduce:

1. Launch the game with HEI installed.
2. Create a world with cheats on, but in survival.
3. Ctrl+Click the wrench to enable cheat mode.
4. Try to cheat items.
5. Instead of getting the items you wanted, you get an error in chat and 64 Nether Stars.

Expected behavior:
I get the items I asked for.

Actual behavior:
I get a game breaking amount of Nether Stars.

Cannot replicate. It works as intended.

Huh, something's up with my modpack.

If you do get an error, post your log here, the log should have a more explicit error.

OK, I'll get to it.

Log: https://privatebin.net/?5675fc773460d796#2RK1QoKsLw2cm3V5h9c2KMF6beP7j2z9bPTGnn1rmi6L

(the first time I tried to cheat stuff in survival, I got smooth sandstone, which is what I asked for. But if I try again, not only does Ctrl+Click-ing the wrench give me nether stars (it got disabled), enabling it through any other means does not work (I recall it working once, then I would still get nether stars when I click something).