I built a dining table for a client roughly 42 x 108 that was basically a half circle shape with fanned veneers. The material was a paper backed quartered anigre over a double layered MDF veneered both sides, vacuum bagged with powdered veneer glue from a major supplier. The finish was done by a local cabinet shop of his choice in a matte finish.
After a couple of years there are some lines visible in the joints of the veneer if you get in the right light. He had the cabinet company refinish it once because sitting at the table in his penthouse condo in front of an all glass wall you see every imperfection, or at least he does.
The original discussion I had with him I warned him wood is wood and there will always be some movement. He wanted me to build it of solid lumber originally. Can this table be expected to remain perfect with a marginal finish in front of glass windows and of that size?
From contributor T:
The glue between the paper and the veneer is a PVA type, which is soft. It will always be on the move more than raw veneer using PPR glue.
If the table is exposed to any direct sunlight you can expect problems no matter what. You're lucky you didn't make it from solid wood pieces (as the owner suggested); it would have been back in pieces by now.