decreasing line stroke causes varying line weight
I have found that when I decrease the stroke of a line (made by the paintbrush tool if that matters), what was originally a basic, one width line changes to have varying line weights. Like in the picture below, if you look closely the lines don't keep the same width after I converted the stroke to 0.25. When it was at 1 pt the line weight didn't fluctuate. Also, sharp corners and small curves bleed together. Why does this keep happening and is there any way to fix it?

