Hello everyone. My wife and I purchased a beautiful dining room table made of Honduran Pine. Within 5 weeks, a stress crack appeared, running along the wood grain, through the entire 3/4' thickness of the top, and over 2 feet long into the width of the table. We returned it for a new table, and have tried to keep the humidity level in our apartment stable, we oil it every week. yet a 2 inch hairline crack has still developed, also through the entire thickness and along the woodgrain. Our other, cheaper wood furniture in the room does not have this problem. Why is this happening, how can we prevent or stop it, and can it be repaired without sanding or destroying the beautiful finish it has. Any help would be greatly appreciated.