I understand you are experiencing issues with your A10 + MixAmp TR. Here are a few steps you can take to attempt to remedy the issues.
Make sure the inline cable is fully seated in the headset and on the MixAmp TR.
Test out the headset by itself on an alternate device. You can either test it out on a PC or you can hook up the headset directly to any smartphone.
If these steps did not alleviate the issues you were experiencing, please go to the link below and submit a case. Let your agent know all the steps you tried and the outcome of your troubleshooting. It will help speed the resolution of your case!
Support Channel: https://www.astrogaming.com/contact/