[MCL-6272] Cannot play offline due to error downloading 1.11.json file

When offline and clicking the Play Offline button the following error appears:

Name: 1.11.json
URL: https://launchermeta.mojang.com/mc/assets/1.11/ea7f56173691250e9805db5e3dda2d65b951ede3/1.11.json
Error details: Request error -106: ERR_INTERNET_DISCONNECTED
Filename on disk: 1.11.json
Path: /Users/richard/Library/Application Support/minecraft/assets/indexes/1.11.json
Exists: false