Hey all. I have an Ender 3 setup with a BLTOUCH using BILENEAR bed leveling. I run a G29 to get a 8x8 grid and when I do a test print the corners are perfect, but center doesn't stick and curls around extruder (I think it's too high). Why is the probe working for some of the board but not the middle (most important part), and how would I fix it? Thanks !