Using SCWB 4.0.0rc2 on WSL2 Ubuntu-20.04 on Windows 10, the 2nd of 2 license detection entries on the left indicates detections in 2 files but only 1 is displayed. A screenshot:

and what I think is the relevant excerpt from the JSON scan file:
"license_detections": [
{
"identifier": "apache_2_0-8352cbe6-d199-3a43-cdc8-b14a837e2ce6",
"license_expression": "apache-2.0",
"detection_count": 1,
"detection_log": []
},
{
"identifier": "apache_2_0-c4e30bcd-ccfd-bbc3-d2f1-196ab911e47d",
"license_expression": "apache-2.0",
"detection_count": 2,
"detection_log": []
}
],