I have a Gold Crown 2 with Simonis 860 HR felt. The felt is approx 6 years old. I had the table broken down because I moved. The felt was nicely folded and put in a storage bin. It took approx 2 years to reassemble the table. The felt is championship blue. When it was reassembled I had no issues but noticed the felt on the cushions turned slightly greenish!!! Any ideas why? All input very appreciated.