I made a wood filler using wood glue and sawdust to fill some stripped out holes in a shelf. The holes are maybe 3/8" x 1" deep so there was a fair amount to fill. Now it is a full 24 hours later and the filler is still not hard. I tried drilling a couple very small pilot holes and the bit came out with a soft malleable putty surrounding it.
I'm thinking that perhaps the pilot hole will help it dry since now the interior is exposed to air but I've never had this experience before. Is it normal for a deep hole filled in this manner to take so long to dry? How long should I expect wait?