diff --git a/source/blender/editors/interface/interface_dropboxes.cc b/source/blender/editors/interface/interface_dropboxes.cc
index 4099ade27c1..9eeacfe27fd 100644
--- a/source/blender/editors/interface/interface_dropboxes.cc
+++ b/source/blender/editors/interface/interface_dropboxes.cc
@@ -57,6 +57,10 @@ static std::string ui_view_drop_tooltip(bContext *C,
   const ARegion *region = CTX_wm_region(C);
   std::unique_ptr<DropTargetInterface> drop_target = region_views_find_drop_target_at(region, xy);
 
+  if (drop_target == nullptr) {
+    return {};
+  }
+
   return drop_target_tooltip(*region, *drop_target, *drag, *win->eventstate);
 }
 
diff --git a/tests/python/modules/render_report.py b/tests/python/modules/render_report.py
index 537f5d2edca..20376c780dc 100755
--- a/tests/python/modules/render_report.py
+++ b/tests/python/modules/render_report.py
@@ -450,7 +450,11 @@ class Report:
             subprocess.check_output(command)
         except subprocess.CalledProcessError as e:
             if self.verbose:
-                print_message(e.output.decode("utf-8", 'ignore'))
+                msg = e.output.decode("utf-8", 'ignore')
+                for line in msg.splitlines():
+                    # Ignore warnings for images without alpha channel.
+                    if "--ch: Unknown channel name" not in line:
+                        print_message(line)
 
         return not failed