ARMarker works only AR.js version 3.4.0

[tsogoo]

I tested example codes on AR.js version 3.4.1, 3.4.2, 3.4.3.
error shows:
Uncaught TypeError: Cannot read properties of undefined (reading 'prototype')

[j-era]

Could you provide more context please. Did you try the example? https://codesandbox.io/s/jolly-hodgkin-ssu33 (supports 3.4.5)