diff --git a/web/typo3conf/ext/ep_products/Classes/Traits/RequestArgumentTypeConversionTrait.php b/web/typo3conf/ext/ep_products/Classes/Traits/RequestArgumentTypeConversionTrait.php
index 5df48341..bb6138b4 100644
--- a/web/typo3conf/ext/ep_products/Classes/Traits/RequestArgumentTypeConversionTrait.php
+++ b/web/typo3conf/ext/ep_products/Classes/Traits/RequestArgumentTypeConversionTrait.php
@@ -82,7 +82,7 @@ trait RequestArgumentTypeConversionTrait
             $filterSettingsRaw = $this->request->getArgument('filterSettings');
 
             if (is_array($filterSettingsRaw)) {
-                $filterSettings = (array) $filterSettingsRaw;
+                $filterSettings = $filterSettingsRaw;
             } elseif (is_string($filterSettingsRaw)) {
                 $filterSettingsString = urldecode($filterSettingsRaw);
                 $filterSettings = FilterSettingsEncoder::decode($filterSettingsString);
@@ -94,8 +94,10 @@ trait RequestArgumentTypeConversionTrait
                 $filterSettings['dateFrom'] = !empty($filterSettings['dateFrom']) ? new \DateTime($filterSettings['dateFrom']) : null;
                 $filterSettings['dateTo'] = !empty($filterSettings['dateTo']) ? new \DateTime($filterSettings['dateTo']) : null;
 
-                if ($filterSettings['bus'] !== null) {
-                    $filterSettings['bus'] = (bool) $filterSettings['bus'];
+                if (!empty($filterSettings['bus'])) {
+                    $filterSettings['bus'] = $filterSettings['bus'] === 'true';
+                } else {
+                    $filterSettings['bus'] = null;
                 }
 
                 $filterSettingsObject = new FilterSettings();