I have sensitivity labels enabled for my Office 365 tenant and have created labels, policies as well as some DLP rules. All appears to be working correctly in SharePoint libraries, apart from PDF documents.
The DLP policy sign is showing for the PDF document, but the value of the sensitivity label is blank. I labelled the document on my machine using the AIP Unified client and then uploaded the file (as I did with the visio file) I have tried searching for the value of the tag using search format of InformationProtectionLabelId:[label_guid] but the PDF document's sensitivity label value doesn't show. I have also re-indexed the library.
Is this by default? Is it the case that all non Office documents sensitivity label value is not displayed?
Any idea if there is a workaround? Any advice greatly appreciated!