- Try doing so much copy and pasting because you didn't have enough extra space between database entries and ended up forgetting to change one of the links (so now an item calls the wrong event, another event adds the wrong item and skill, etc.)
- Forgetting that you changed one of your custom asset's name and not linking the new asset (so now you have to go to every instance that calls that asset and change them all (easier for me since I know how to edit the json files even if I am rusty))
- To top it off, while doing a bunch of database updates, you accidentally overwrite some of your database entries without realizing it until later.
...And then you realize later that you forgot to turn off debug mode in your game, so your game now skips your OP completely.