Closes #3085: Catch all exceptions during export template rendering

CHANGELOG.md

@@ -1,5 +1,9 @@
 2.5.13 (FUTURE)
 
+## Enhancements
+
+* [#3085](https://github.com/digitalocean/netbox/issues/3085) - Catch all exceptions during export template rendering
+
 ## Bug Fixes
 
 * [#3132](https://github.com/digitalocean/netbox/issues/3132) - Circuit termination missing from available cable termination types

netbox/utilities/views.py

@@ -126,10 +126,12 @@ class ObjectListView(View):
             queryset = CustomFieldQueryset(self.queryset, custom_fields) if custom_fields else self.queryset
             try:
                 return et.render_to_response(queryset)
-            except TemplateSyntaxError:
+            except Exception as e:
                 messages.error(
                     request,
-                    "There was an error rendering the selected export template ({}).".format(et.name)
+                    "There was an error rendering the selected export template ({}): {}".format(
+                        et.name, e
+                    )
                 )
 
         # Fall back to built-in CSV formatting if export requested but no template specified