Would having a duped item do anything to my drop rates?

[PSO Paul]

DAMIT! now i gotta go retry ....this is fing like science class grr stupid trials and stuff lol back to ruins with only 10x items ....GRR! sry for post that had no meaning i brb with new results and post them after

Stacking items eg 99 trimates sets drop rate to 0 you need to turn it back to 10 items and restart the game or the drop rates will still be set to 0 so in short if you stack no rares and quit game with 10 items or no rares