Unable to to get a display on the led-matrix grid - Raspberry Pi Forums

i using display modules https://github.com/hzeller/rpi-rgb-led-matrix. when use python script posted in adafruit, able display. when try run parallel processes running other scripts doesnt use display module , dont display on matrix board. using raspberry pi b+ model this.
problem in display comes when try run other scripts along display script in parallel. other scripts not call display module @ all.

solution?
thanks

maybe section of documentation have referred relevant?

https://github.com/hzeller/rpi-rgb-led-matrix#cpu-use

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