The maximum refresh rate of dmx512 is 44Hz, when sending Artnet data in MA2, if delay set to 0 ms, there no interval between packets, the maximum refresh rate of DMX512 will be exceeded, causing the lights to flicker occasionally.
solution: In the Artnet settings, the delay time is set to at least 1ms.
This is the sending interval between packets, which cannot be set to 0ms, 8 universe If you set it to 2ms, the total refresh rate is already 1000/(8x2ms)=62.5Hz, which has exceeded the maximum refresh rate of dmx, so you need to set at least 1ms to give up the CPU processing time, otherwise it is easy to cause downstream equipment data blockage, causing occasional flashing of fixture.