The SimulinkCheckParser expects the id of the div.ReportContent block to be the filename of the model and passes it to the issuebuilder.

issueBuilder.setFileName(system)

but the id is only the model name and not the filename so the .slx extension is missing. What leads to fingerprint errors.

[-ERROR-] Can't create fingerprints for some files:
[Simulink Check Tool] [-ERROR-] - 'sldemo_mdladv' file not found

or am I missing something?
I tried to call the recordIssues from within the same directory the slx file is located.
I tried it with the result file located next to the slx file.