Boxster 986 remote not working

[gkmaia]

I've got two keys. Both transponders are working so I can start the car with both.

But only the one in the LEFT can switch lock/alarm.
If you look close you will see the one on the RIGHT (not working) flashes differently.

I have tried the open door manually and press button 1 as per manual to take the key out of standby mode but that does seem to fix the remote.

Anyone gone through the same issue? Tips?

Here is a video of the issue: https://youtu.be/-uZ3g-tpGSE