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Add-on fails to activate in newer Blender

BlenRig fails to install or activate in newer Blender versions such as 4.0 and 5.1, showing errors on load.

Tier I · Proven The best-established problems.

5 public reports · first reported 26 April 2023 · last reported 5 May 2026

Idea report · $19 · No contacts · All sales final

See a sample idea report

What's going wrong

People installing the BlenRig character rigging add-on into newer Blender releases, including 4.0 and 5.1, get errors when enabling it, and some say older add-on versions fail too.

AI-assisted: written with the help of AI from the reports. The idea report has the full summary.

In the idea report

  • The full summary.
  • The products the 5 reports are about, and how many came each month.
  • Related problems.

No business has been found with this problem yet, so the report has no contacts. All sales are final — no refunds. Pricing.