Thank you Pieter for sharing the item skill bonus location in the your response other thread. By analyzing it, I was able to figure out that there is a bug with skill boost items that require multiple of the item to work. Specifically, it seems that if an item requires a certain number of duplicates to give its skill bonus, if you have twice the required number the skill boost turns off. So if the item turns on when you have X, it turns off when you have 2X. So, in the saved game I attached to my other thread (here is the link: Questions from the current build 4.1 of July | PiratesAhoy!) Currently I have in my inventory 5 garnet and 6 pyrite, which should be granting bonuses to accuracy and cannons. Garnet requires 2 for the bonus, pyrite requires 3. No bonuses are given to my character despite having the number. It looks like: If I give 2 garnet to my officer Gentile, both she and I get the bonus to that skill. I would then drop from 5 garnet to 3, meaning I have dropped below twice the requirement number of 2, and only then do I get the bonus. If I give 1 pyrite to Gentile, I get the bonus, because I now have 5 pyrite, and the requirement is 3, so I am once again below 2X. I am curious whether 3X the number would turn the boost back on, but I don't have enough of the substances involved.