The mod works great for the most part, every other floor chest works perfectly, but when i get to tje boss chest at the top of the tower i can both open it before the boss is even activated and it holds no loot items, for the most part the loot you get going up is still worth it but for a final fight getting nothing is kinda meh and i dont know what could be causing the issue

Nothing causing it on your end, current version for 1.20.1 on Curseforge is a beta. The bug will be fixed in future updates.