Flickering trees when changing TAA settings

[WhatRules]

I wanted to try TAA, because it can reduce some jaggedness, but it makes my character too blurry so I tried these settings:

 

taa hf 0.8

taa po 0.675

taa ps 0.675

 

Suddenly all the trees in the background starts to flicker and the whole image is shaking. I realized the sharpening was pretty high so I restarted and just lowering hf to 0.7 was enough for the flicker to start showing. Why is this happening and is there no way to have less blurry TAA without glitches? I'm using Silent Horizons ENB and I can't find any LumaSharpen in the settings.