MD-0011-0 Error on Plugin Install - Custom Thumbnails

General Issues & Bug Reporting (Fab)
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1

Summary

Hi there..

Following Plugin cannot be installed and instead throws an MD-0011-0 Error:

The Seller also got informed.

Kind regards…

What type of bug are you experiencing?

Documentation

URL where the bug was encountered

Steps to Reproduce

Open the Launcher
Find the Plugin in the Library
Try to install to an Engine

Expected Result

The Plugins gets installed

Observed Result

MD-0011-0 Error

Platform

Win64

Operating System

Windows 11 Pro

2

i have this same problem but on my Mac m4 do you know how to solve it ?

3

This is something Epic needs to resolve.

I posted this here and informed the Seller about that. For me, it got fixed now.

4

Hi @BDC_Patrick . Thanks for reporting this one - I’ll pass it on to the team. For more info on this issue, check out this post: Plugin Installation Error (MD-0011-0) After Fab Migration - #121 by skfabby

5

Same error MD-0011-0 on the Content Examples from Epic Games.

1 Like
6

If anyone is still encountering this issue in 2026, try launching the Epic Launcher as Administrator. Fixed it for me. (Not this specific plugin, but got this same error when trying to install a few)