diff --git a/HellionChat/FontManager.cs b/HellionChat/FontManager.cs
index 17daf5d..809846f 100644
--- a/HellionChat/FontManager.cs
+++ b/HellionChat/FontManager.cs
@@ -226,11 +226,21 @@ public class FontManager
             return fontId.AddToBuildToolkit(tk, config);
         }
         catch (Exception e)
-            when (e is FileNotFoundException or DirectoryNotFoundException or IOException)
+            when (e
+                    is FileNotFoundException
+                        or DirectoryNotFoundException
+                        or IOException
+                        or InvalidOperationException
+                        or ArgumentException
+            )
         {
+            // Atlas-toolkit throws span IO and validation failures; routing the
+            // wider set through the fallback keeps a corrupt font config from
+            // taking down the whole atlas build.
             Plugin.Log.Warning(
                 e,
-                $"Configured {slot} font unavailable, falling back to NotoSansCjkRegular"
+                $"Configured {slot} font failed to load ({e.GetType().Name}), "
+                    + "falling back to NotoSansCjkRegular"
             );
             var fallback = new DalamudAssetFontAndFamilyId(DalamudAsset.NotoSansCjkRegular);
             return fallback.AddToBuildToolkit(tk, config);