Distortion shader freeze one screen of the Quest - Unity

Hi!, we are developing a Quest game using Unity 2019.4 with Built-In Render Pipleline Graphics (not URP)

We added a particle effect for an explotion. When we compile and test it... the right screen of the Quest freezes until the particle animation ends. 
What is happening?

Oculus SDK: Oculus Integration v17.0


Setings:


Shader:


Greetings