I suspect TNG is purposely obsolete-ing MyKad TNG. It's well known that newer top-up machine will not detect MyKad TNG. It's obvious it's on purpose, when I can top-up at certain toll booths, but cannot top-up at petrol stations.

There's no way it's an isolated case. Others have posted that they cannot top-up their MyKad TNG as top-up machine doesn't detect it.