Perhaps "System Clone" is the operative as opposed to "Disk Clone". SC is not checked in the free column. The Partial notation under DC mentions MBR/GPT issues. I dunno. I opted to not try AOMEI but used Macrium free instead. More OT of OP here - it did a Win 10 system clone without problem...
AOMEI Backupper free has gotten mentioned as a possible 3rd party solution. Low-level novice here who is exploring use of AOMEI Backupper Standard (free) and Pro (paid) versions. FYI - Their support literature is extremely bloated and convoluted but after much rambling reading I have learned...