For the last couple weeks I've been randomly getting status 500 errors from the elevation API. When the error occurs, sending the request a 2nd time generally works (otherwise a 3rd will). Other times it may work 10 times in a row. The error message doesn't show the problem:
"Error processing request: null Please see the documentation for the Elevation Service at http://open.mapquestapi.com/elevation/ for details on correctly formatting requests."
I've confirmed the requests are identical when the 1st fails and the 2nd succeeds, and both POST and GET requests show the error. Here's an example:
Thanks in advance for your help resolving this!