@PYCEN Apologies for the delay in response and all the inconvenience caused because of the issue.
The Parsec error 15000 could be caused by outdated Graphics drivers or conflicting streaming applications. A bug in the Graphics driver or incorrect configurations may also cause the error message.
Some general troubleshooting guide is here.
As per my research I found in most of articles PARSEC being used with NV6 series.
You can refer to this article as well for more info.
I would also recommend you to contact azure support. If you have a support plan, requesting you to file a support ticket, else please do let us know, we will try and help you get a one-time free technical support.
Hope it helps :)
Please 'Accept as answer' if it helped, so that it can help others in the community looking for help on similar topics
Note : There are few articles in the mentioned answer which are not the official documentation from Microsoft side, so we can't confirm on the working of components as mentioned in the article.We have just tried to provide you the information which can be helpful to you with the current issue you are facing and help you in resolving the same.