Error in Computer Shader "Accessing the RHI resource at this time is not allowed" (5.4.2)

But that doesn’t make any sense anymore. The shader needs the output from the previous pass:

  1. PressureCS Input: Pressure0, Output: Pressure1
  2. PressureCS Input: Pressure1, Output: Pressure0
  3. PressureCS Input: Pressure0, Output: Pressure1