Before I contributed the 14 points shown, the number 3 position was open with a reward chest available. But after I contributed I recieved no chest? Why?
The reward chests are not set until the Ancient Wonder is fully upgraded.
Looking at your screenshot the Tome of Secrets has not yet received all 820 Knowledge Points to complete this level. Once it does, the relevant chests and donating players will receive the chest contents.
Thanks, that's a better answer to my question. I did not "visually" see the reward chest appear as the other [layers showed. Now, after refreshing the game tab, the chest has appeared. I do have to occassionally clear out my cache to solve other issues so I guess now would be a good time. ;-)