Here a quick tutorial on how to fix it on ReVanced Extended:

  1. Use the latest RVX and MicroG Builds (This will most likely fix it for most people)

Other ways:

Enable Spoof player parameter in Settings -> ReVanced Extended-> Miscellaneous

If that doesn’t work try these methods:

Clean-Installing:

  • Clean install RVX & MicroG (Make sure to install the latest versions)
  • Open RVX and go into settings -> ReVanced Extended -> Miscellaneous
  • First enable Spoof player parameter
  • Now enable Spoof app version and spoof the app to v16.08.35

Other methods:

  • Using Youtube with a different google account
  • Using Youtube in Incognito mode

Patching yourself (ReVanced Extended):

  • When patching yourself make sure you are using the newest patches
  • If it doesn´t work with patching with RVX Manager, try Revancify/ ReVancify-X and RVX Builder (The manager often has issues).

Fix on normal ReVanced:

  1. Downgrading
  • Uninstall YouTube ReVanced
  • Download the YouTube v18.23.35 (nodpi) APK from APKMirror.
  • Download, re-install or update the latest version of ReVanced Manager (v 1.6.0)

Follow the common steps for paching YouTube (Opening the manager, giving permissions, go to “Patcher”, select “Select an application”, press “Storage” down below, select the downloaded YouTube APK, press on “Selected patches” and use the Default option, go back and press “Patch”)

Now with the crashing problem, it seems that the latest ReVanced Manager version (1.6.0) has some issues with certain devices, making the patched APKs unable to open and crashing instantly.

For this, downgrade the manager to the 1.4.3 version and patch YouTube as usual (remember using the 18.23.35 version).

Update: ReVanced Manager v.1.6.1 fixed all the problems, so you should try and update the manager (even trying with the new YouTube version 18.23.39, but if that doesn’t work, just keep using the 18.23.35 version)

Other methods:

  • Using Youtube with a different google account
  • Using Youtube in Incognito mode

Patching yourself (ReVanced):

  • When patching yourself make sure you are using the newest patches
  • If it doesn´t work with patching with ReVanced Manager, try Revancify/ ReVancify-X and ReVanced Builder (The manager often has issues).

Workarounds that may work:

  • Go to the channel of the video you’re trying to watch, and find it in their videos log, instead of just playing it from the search results.

Why does this error occur in the first place?

  • It occurs because of an A/B Testing Change, I haven`t been affected by this yet. I may now always create 3 different prebuilts 1. Using RVX Manager 2. Using ReVancify/ ReVancify-X 3. Using RVX Builder since the manager can have issues.