Stripper rinsing question

I have a western red cedar fence that I stained once in 2017 (both sides) with Armstrong-Clark transparent oil-based stain. One side is full sun, one is nearly full shade. I’ve been cleaning the fence every year or two, and this year I’m finally getting around to restaining.

I was doing a new set of cedar porch steps in RAD Semitransparent Light Walnut, so I ordered enough to redo the fence as well. Got the stripper/brightener kit and the thickening additive. My plan was to strip, spot sand the posts and 2x supports, brighten, stain.

Yesterday I applied stripper to both sides of the fence. I used the Chapin sprayer and the 5 gallons of mixed stain just covered the 350-ish square feet. Let it sit for 20 minutes, then rinsed with a hose (pressure washers and me don’t get along). After a full rinse I scrubbed, then rinsed again.

The next day, I’m seeing quite a bit of wood pulp remaining, especially on the sunnier side (see photos), and I’m wondering if I’ve done enough to get the stripper out. Does it look like I need to rinse more, and can I still do that now that the wood has dried overnight? Or can I proceed to spot sanding and brightening?