We had 10 of our BIN GTC listings in one of our two stores not showing up in Best Match results yeaterday and last night.

Just checked again this morning and they are all showing now.

Just remember too that if you have the out-of-stock control option switched on then any listing where the qty = 0 will not show in Best Match. I had made that mistake with a couple of ours but it did not expalin all that were missing yesterday tho. This morning the only ones missing are the out-of-stock ones.