diff --git a/src/designer/elsa-workflows-studio/src/plugins/fork-plugin.tsx b/src/designer/elsa-workflows-studio/src/plugins/fork-plugin.tsx
index 22b51660d..691870ff8 100644
--- a/src/designer/elsa-workflows-studio/src/plugins/fork-plugin.tsx
+++ b/src/designer/elsa-workflows-studio/src/plugins/fork-plugin.tsx
@@ -18,7 +18,7 @@ export class ForkPlugin implements ElsaPlugin {
     const props = activityModel.properties || [];
     const syntax = SyntaxNames.Json;
     const branches = props.find(x => x.name == 'Branches') || {expressions: {'Json': '[]'}, syntax: syntax};
-    const expression = branches.expressions[syntax] || '[]';
-    context.outcomes = !!expression['$values'] ? expression['$values'] : parseJson(expression) || [];
+    const expression = branches.expressions[syntax] || [];
+    context.outcomes = !!expression['$values'] ? expression['$values'] : Array.isArray(expression) ? expression : parseJson(expression) || [];
   }
 }
diff --git a/src/designer/elsa-workflows-studio/src/plugins/run-javascript-plugin.tsx b/src/designer/elsa-workflows-studio/src/plugins/run-javascript-plugin.tsx
index 907226a29..1a774b128 100644
--- a/src/designer/elsa-workflows-studio/src/plugins/run-javascript-plugin.tsx
+++ b/src/designer/elsa-workflows-studio/src/plugins/run-javascript-plugin.tsx
@@ -17,8 +17,8 @@ export class RunJavascriptPlugin implements ElsaPlugin {
 
     const props = activityModel.properties || [];
     const outcomes = props.find(x => x.name == 'PossibleOutcomes') || { expressions: {'Json': ''}, syntax: SyntaxNames.Json };
-    const expression = outcomes.expressions[SyntaxNames.Json] || '[]';
-    context.outcomes = parseJson(expression) || ['Done'];
+    const expression = outcomes.expressions[SyntaxNames.Json] || [];
+    context.outcomes = Array.isArray(expression) ? expression : parseJson(expression) || ['Done'];
 
     if(context.outcomes.length == 0)
       context.outcomes = ['Done'];
diff --git a/src/designer/elsa-workflows-studio/src/plugins/send-http-request-plugin.tsx b/src/designer/elsa-workflows-studio/src/plugins/send-http-request-plugin.tsx
index 810c55f5c..f6f4f5578 100644
--- a/src/designer/elsa-workflows-studio/src/plugins/send-http-request-plugin.tsx
+++ b/src/designer/elsa-workflows-studio/src/plugins/send-http-request-plugin.tsx
@@ -18,8 +18,8 @@ export class SendHttpRequestPlugin implements ElsaPlugin {
     const props = activityModel.properties || [];
     const syntax = SyntaxNames.Json;
     const supportedStatusCodes = props.find(x => x.name == 'SupportedStatusCodes') || {expressions: {'Json': '[]'}, syntax: syntax};
-    const expression = supportedStatusCodes.expressions[syntax] || '[]';
-    let outcomes = !!expression['$values'] ? expression['$values'] : parseJson(expression) || [];
+    const expression = supportedStatusCodes.expressions[syntax] || [];
+    let outcomes = !!expression['$values'] ? expression['$values'] : Array.isArray(expression) ? expression : parseJson(expression) || [];
     
     outcomes = [...outcomes, 'Done', 'Unsupported Status Code']
     
diff --git a/src/designer/elsa-workflows-studio/src/plugins/state-plugin.tsx b/src/designer/elsa-workflows-studio/src/plugins/state-plugin.tsx
index 1505bb47f..976713637 100644
--- a/src/designer/elsa-workflows-studio/src/plugins/state-plugin.tsx
+++ b/src/designer/elsa-workflows-studio/src/plugins/state-plugin.tsx
@@ -21,7 +21,7 @@ export class StatePlugin implements ElsaPlugin {
 
     const transitionsSyntax = SyntaxNames.Json;
     const transitions = props.find(x => x.name == 'Transitions') || {expressions: {'Json': '[]'}, syntax: transitionsSyntax};
-    const transitionsExpression = transitions.expressions[transitionsSyntax] || '[]';
-    context.outcomes = !!transitionsExpression['$values'] ? transitionsExpression['$values'] : parseJson(transitionsExpression) || [];
+    const transitionsExpression = transitions.expressions[transitionsSyntax] || [];
+    context.outcomes = !!transitionsExpression['$values'] ? transitionsExpression['$values'] : Array.isArray(transitionsExpression) ? transitionsExpression : parseJson(transitionsExpression) || [];
   }
 }
diff --git a/src/designer/elsa-workflows-studio/src/plugins/user-task-plugin.tsx b/src/designer/elsa-workflows-studio/src/plugins/user-task-plugin.tsx
index 95f6118a7..a87693d11 100644
--- a/src/designer/elsa-workflows-studio/src/plugins/user-task-plugin.tsx
+++ b/src/designer/elsa-workflows-studio/src/plugins/user-task-plugin.tsx
@@ -19,6 +19,6 @@ export class UserTaskPlugin implements ElsaPlugin {
     const syntax = SyntaxNames.Json;
     const branches = props.find(x => x.name == 'Actions') || {expressions: {'Json': '[]'}, syntax: syntax};
     const expression = branches.expressions[syntax] || '[]';
-    context.outcomes = !!expression['$values'] ? expression['$values'] : parseJson(expression) || [];
+    context.outcomes = !!expression['$values'] ? expression['$values'] : Array.isArray(expression) ? expression : parseJson(expression) || [];
   }
 }