It would appear there's an unacceptable character in the recent package.xml changes which affects all users not just those who've installed this workbench, this is the output in Report View:
16:40:19 Checking network connection...
16:40:19 GitHub's zen message response: It's not fully shipped until it's fast.
16:40:19 Failed loading /home/john/.cache/FreeCAD/Cache/AddonManager/PackageMetadata/MakerWorkbench/package.xml
16:40:19 XML declaration not well-formed: line 1, column 52
16:40:19 Addon Manager internal error: lost metadata for package MakerWorkbench
16:40:19 Addon Manager internal error: lost metadata for package MakerWorkbench
16:40:19 Addon Manager internal error: lost metadata for package MakerWorkbench
It would appear there's an unacceptable character in the recent package.xml changes which affects all users not just those who've installed this workbench, this is the output in Report View:
using: