Interesting - there are some test cases for graphics in the Espruino repo - maybe you could modify one of those to make it exhibit the problem?
@Gordon started
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
Interesting - there are some test cases for graphics in the Espruino repo - maybe you could modify one of those to make it exhibit the problem?