dynamic resolution is not working

pretty much the title. i have dynamic resolution enabled and my target fps at 55 but its not working. i am making this post because i distinctively remember it working last league. my card is 6750xt and my cpu is 5600 if that matters. as a bandaid fix, can someone who has a working dynamic resolution post their config.ini for me to partially copy? ive done some research and it seems like it might be a config ini problem.