Two WS2812 matrices (NeoPixel ring and matrix)

[maeb0r0wski]

Hello! Thank you very much for creating and supporting the luma libraries! Can you please help me with this question? Сan I connect two ws2812 led matrices to different pwm pins of Raspberry Pi 4b and control them separately? I tried to change the library a bit to be able to specify the pin and channel to use when initializing the matrix, but it didn't help: only one matrix lights up, and it outputs the image sent to the second one. Can you tell me, is it possible to do this at all?

[maeb0r0wski]

Updated: I am able to run the program with both NeoPixel working properly, but only once. In the program I create two ws2812 objects (matrix and ring) on two different pins and two different channels. The first time I run the program, everything works fine. However, after finishing the program and starting it again - the first matrix starts to show the data I send to the second one (ring). Rebooting the Raspberry Pi again allows me to enjoy a properly working program once. As I understand it, there is no memory/pin clearing(?) after the program ends.
Sorry, I don't have a deep enough knowledge of the Raspberry Pi. Any help would be appreciated, thanks!