When I trimmed the ends, the pieces fell apart. That has never happened to me in the hundreds of hardwood panels I have done, so I was very surprised. Each side has glue on it, but it just didn't hold. I clamped the panel to a table and pushed down on it and the joint opened up. I think it is only held together by the three biscuits I put in. Now I wish I had used four!
What caused this? I glued up some pine before and it did fine; is it something about spruce?
I have a very thin glue/chalk (Captain Tolley, if you have never heard of it, it is great product) and laid some in while opening up the joint a hair. Now I am gently clamping and hoping I can salvage these panels. I will know in a few hours.