Hm... I think I might know what went wrong. The Item Manager sometimes forgets to write a hex byte. I gave some instructions on how to put that byte in, but hex editing is a tricky task...
If you edited the "????????" that comes directly after "GREEN SHARD", then please follow these instructions. Otherwise, do not follow these instructions, and instead tell me which item you were modifying.
Open your ROM with a hex editor, and go to offset 3DB918. Scroll so I can see the byte at that offset and the data that comes after it. Take a screenshot. Send it to me. If you're having the problem that I think you're having, then that screenshot will help me give you further instructions.
If you edited the "????????" that comes directly after "GREEN SHARD", then please follow these instructions. Otherwise, do not follow these instructions, and instead tell me which item you were modifying.
Open your ROM with a hex editor, and go to offset 3DB918. Scroll so I can see the byte at that offset and the data that comes after it. Take a screenshot. Send it to me. If you're having the problem that I think you're having, then that screenshot will help me give you further instructions.