There's a great chance it has a plastic bushing sleeve which you are destroying with the screw in bar.
Yeah...unfortunately. I can not blame Ibanez for my mistake or the OP’s possible mistake. I do wonder why Ibanez has so many bridge variants year to year or simultaneously? How many “Edge” type bridges exist? I thought R&D was difficult and expensive, at least, that is the trump card I hear used when it suits the argument.
Sorry for taking that off topic. It has been on my mind for awhile. Anyways, Rich tends to know Ibanez problems based off the model and “tone of the text.” English is optional. 😉