I had a perfectly functional Google Maps application that was working fine until this morning when (while instructing someone else on how to use Server Manager), using Server Manager, I redirected the Map Document address (on the Parameters tab) to the same address that it already had. I did not change the address. I simply browsed to the same address that it was already using. And lo .... once I hit "Save and Restart", the layer was gone from any Google Maps javascript applicatiion.
Does anyone have any idea what the cause might be?