why dont brush textures show up on paint tool sai

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when i tried to open the 'help.txt' document there was only gibberish, and the ssd file labeled 'brushes' was unopenable until i tried it with notepad and then there was gibberish again. the answer they got was to copy the brushes from the systemax folder to paint tool sai 2, which i tried, but nothing happened. i did some research, and someone in 2016 had a similar problem, i think, but ill explain it again. i tried to check the error log/history/aborted works section, but it was blank as well- its like theres just a whole new fresh program.

So i opened up paint tool sai 2 one day, and all of my customized brushes that i've made over a couple of years are just.

Why dont brush textures show up on paint tool sai