why is oil coming out the breather tube?

So I have a bit of a problem. 2010 800 just did an oil change I did over fill it by about 1/4 of a quart if that not sure didn’t measure it when I let it out but it was a lil bit above the last mark on the dipstic.
I noticed I had an oil leak took forever to narrow it down but finally did and it’s coming from the breather tub from the back of the motor. I did get it all cleaned out got the oil out of the tube and got the oil level to the proper fill height and it’s still coming out. Has anyone else had this problem? Did I over pressurize the system with it having to much oil in it? That’s what I thought but I figured it would of stopped doing it after I got the oil level to normal.
Did I screw something up inside the motor? I’m lost on this one
Maybe I still have 2 much oil in it because it’s just right at the top mark above the safe line