Modern Vespa

After a pleasant ride and parking in garage , next attempt to ride with no start, after few attempts went and get the spare blue key , I don't have the brown master only to find out the same result
mobilizer blinks normally, when the keys on position, instrument clusters : headlight, oil ,check engine and the code lights up at the same time then in milliseconds, code indicator goes off, follow by check engine goes off and comes back on in another millisecond with code light comes on at the same time then code light goes off and comes back on this time stays on permanently . some can say code lights blinks twice but it is not in the same frequency as when the mobilizer is On .
So far I test and checked
Kill switch is OK
Starter botton is OK
Hand brake switches are OK
Starter Relay is OK
what is the changes are both Blue key loose their code at the same time
If any one had similar issues and solved their misery I greatly appreciate your input
Best wishes

If I've correctly untangled ...

Could be the IMMOBILIZER antenna has failed. It's attached to the lock barrel. part number 638534

I tried disconnect and connecting again , which did not yield any changes . Then I test the 3 wire going from antenna to ECU I unplug the ECU connections so I can test the wires did not get broken or damaged Orange w white wire has connectivity signal and does not interact with other and each red w White and the solid black also has conncetivity but they also show connectivity when I touched the other black or the red still shows /beeps connctivity I checked where the wiring harness in Engine bay they don't touch each other . Also Order another antenna ( it is used ) so I can cross reference them ) but coming from oversea so have to wait or forks $170 at dealer for may or may not solution.