I have the same issue and I’m using rechargeable batteries.
this hasn’t been an issue until the last few weeks and is now at the stage of the control only operating the tv volume and power.
Thank you for posting to us here on the Community.
I am sorry to hear you are experiencing issues with your remote control.
Can you please confirm which box/remote you have?
Can you please also take a look at our troubleshooting page here?
Let us know if you require further assistance.