You can try to manually assign this driver. It does not support this remote, but may show some more info.
Then delete the device from HE ( 'REMOVE DEVICE' red button at the bottom of the web page).
Pair it as a new device.
There will be a 'Device Info' hyperlink - please copy and paste here all the information from the popup window (before you give the device a name).
Assign the Tuya driver once again (it will not be automatically selected). Then try again pressing the keys..
I don't expect there will be much difference, but try again with the Debug logging turned on - anything in the live logs?
