Hi there!
I've been working on an Alexa skill for some time now, that's inconsistently getting the error that says something along the lines of remote endpoint couldn't be reached or the response was invalid. The general flow of the skill is as follows:
1. Get command from user
2. Match the command to the intent accordingly
3. Request data from another server
4. Put the request and the received data into a database
The requested data is currently being hard-coded to further narrow down where the problem is. When I make a request, sometimes I get the no response error, sometimes Alexa responds but the request doesn't make it to the database, and every once in awhile Alexa will respond and the request will be placed in the database. For some reason, the only way to guarantee getting entries into the database is to make a lot of rapid requests (I just hold down the enter button when testing the skill in the developer console), and even that doesn't get all of the requests put in the database. Any sort of assistance would be much appreciated!