We can't create this issue for you right now, it could be due to unsupported content you've entered

[balasubramani]

We can't create this issue for you right now, it could be due to unsupported content you've entered into one or more of the issue fields. If this situation persists, contact your administrator as they'll be able to access more specific information in the log file.

Getting this error intermittently.  Same request its was working fine in one machine and not working another machine. configurations are same for both pc's. 

Also i would want to highlight no changes in the api request.

[Nic Brough -Adaptavist-]

What does the log file say the error is?