Fix VRTK and LWRP/URP or HDRP

1- Edit MomentProcessor.cs (VRTK\Dependencies\Zinnia.Unity\Runtime\Process\Moment) or (Packages\Zinnia.Unity\Runtime\Process\Moment)

2- Starting at Line 4 add the following code
using System.Collections;

3- Starting at Line 60 make the following changes
protected virtual void OnEnable() { StartCoroutine(ProcessWhile()); //SubscribeMoment(); }
protected virtual void OnDisable() { //UnsubscribeMoment(); }

4- Starting at Line 109 add the following code
System.Collections.IEnumerator ProcessWhile() { while (true) { yield return new WaitForEndOfFrame(); Process(); } }

5- Save.

This code came from the VRTK Slack Channel by J. Sebastian on May 28th in #general-help.