Source Cannot Be Selected - MITRE HeatmapIssue MITRE ATT & CK Heatmap does not allow users with the sn_ti.read/sn_ti.mitre_analyst/sn_ti.admin roles to select a source. CauseThe 'Relevant priority' field of many technique records was null. This is possible because the techniques existed as part of demo data prior to the field being added to the application. ResolutionUpdating the priority to a non-null value will resolve the issue. We've applied the below script to resolve this in the instance, now the heat map is loading without any issues. var gr = new GlideRecord("sn_ti_stix2_attack_pattern"); gr.addEncodedQuery("source.ref_sn_ti_taxii_collection.taxii_profile=863b9fbce79010106b3663c343f6a986^relevant_priority="); gr.setValue("relevant_priority","none"); gr.updateMultiple();