Short-circuit rendering on no 1d-data; avoid m4 layer crash

pikers · Mar 13, 2023 · 889e920 · 889e920
1 parent 1aab9f1
commit 889e920
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/piker/ui/_render.py b/piker/ui/_render.py
@@ -192,6 +192,10 @@ def render(
 
         ) = fmt_out
 
+        if not x_1d.size:
+            log.warning(f'{array_key} has no `.size`?')
+            return
+
         # redraw conditions
         if (
             prepend_length > 0