Hi,
Unfortunately, if Lansweeper has an updated time stamp on the scan then we will not delete them.
If you submit a support case we can take a deeper look at this and determine is maybe a feature request can be made on your behave.
Please open a ticket in our support portal.
Make sure to add screenshots and the GatherLogs output file so our SME's can start investigating the issue straight away.
Using the GatherLogs tool.