Version 4.7.0

system/Helpers/Form/Translatable.php

@@ -78,7 +78,15 @@ class _Translatable extends FormAbstract
 					{
 						if ( \is_array( $this->options['sprintf'] ) )
 						{
-							$values[ $k ] = vsprintf( $v, $this->options['sprintf'] );
+							try
+							{
+								$values[ $k ] = vsprintf( $v, $this->options[ 'sprintf' ] );
+							}
+							catch ( \ValueError $e )
+							{
+								/* Note in pre-PHP8, vsprintf() returns FALSE */
+								$values[ $k ] = FALSE;
+							}
 						}
 						else
 						{