On walnut, I typically use watco and grain fill via wet sanding. Thought I’d try a different approach. I sanded this piece to 220, applied two applications of Wunderfil walnut grain filler, sanded again to 220 and then applied GF Sealacell. Seems to get a bit of blotch. Never had that happen with walnut before. Is it the GF, or the grain filler, or something else I did? This is the underside of the piece, so I can go back to my normal routine, but just curious.
Thanks!

7648198F-7689-447B-B0EA-816EAB794843.jpg