diff --git a/pkg/services/authz/rbac/service.go b/pkg/services/authz/rbac/service.go
index 45d2c97c11d..3aa77178b1e 100644
--- a/pkg/services/authz/rbac/service.go
+++ b/pkg/services/authz/rbac/service.go
@@ -678,6 +678,11 @@ func (s *Service) checkInheritedPermissions(ctx context.Context, scopeMap map[st
 			ctxLogger.Error("could not build folder and dashboard tree", "error", err)
 			return false, err
 		}
+		if !s.isFolderInTree(tree, req.ParentFolder) {
+			// Not erroring here as the permission might exist but the folder wasn't synchronized yet
+			// Once in mode 5 we can deny access here
+			ctxLogger.Error("parent folder not found in folder tree", "folder", req.ParentFolder)
+		}
 	}
 
 	if scopeMap["folders:uid:"+req.ParentFolder] {
@@ -724,6 +729,9 @@ func (s *Service) buildFolderTree(ctx context.Context, ns types.NamespaceInfo) (
 		span.SetAttributes(attribute.Int("num_folders", len(folders)))
 
 		tree := newFolderTree(folders)
+		if len(tree.Nodes) != len(folders) {
+			s.logger.FromContext(ctx).Warn("mismatched folder count when building tree", "namespace", ns.Value, "expected", len(folders), "got", len(tree.Nodes))
+		}
 
 		s.folderCache.Set(ctx, folderCacheKey(ns.Value), tree)
 		return tree, nil