Blur + gradient creating this grainy texture that is unexportable

So im pretty new to figma, and i was trying background blur when i give a rectangle a 1% opacity gradient of 1% full black to 0% full black when i notice that it has this grain texture on it.


so i zoom in to check it out but the more i zoom in the more grain i see until at 25600% i get to more grain! (only one media allowed :frowning: )

i try to export but it takes quite a while so i just restart figma. so im giving a project link to see if you see this also or if its just me!
Thanks! :smiley:

https://www.figma.com/file/t56tbYW9DJF7Kd4YKtSx0q/What-happened-here%3F?type=design&node-id=0%3A1&mode=design&t=kg2UUWNl9s7GToPP-1