Decrypt Error

[lnbc1QWFyb24]

When sending multiple RPC requests at once I get the following errors:

When the requests are made separately waiting for each one to complete they all work perfectly, but when fired off at the same time the above error occurs.

I could just wait for each request to receive a response before sending the next one except in the case of long running requests such as waitinvoice which would block other requests for long periods, so it would be nice to be able to send requests in parallel if possible.