diff --git a/src/TemplateProcessor.ts b/src/TemplateProcessor.ts
index 9b1669da..cc51bc78 100644
--- a/src/TemplateProcessor.ts
+++ b/src/TemplateProcessor.ts
@@ -1157,7 +1157,7 @@ export default class TemplateProcessor {
                     resolve({
                         "error": {
                             message: `wait condition ${waitCondition} timed out in ${timeout}ms`,
-                            output: this.output
+                            output: JSON.parse(JSON.stringify(this.output)) // deep copy
                         }
                     });
                 } else {
@@ -1171,7 +1171,7 @@ export default class TemplateProcessor {
                     this.removeDataChangeCallback('/');
                     clearTimeout(timeoutId);  // Clear the timeout when condition is met
                     this.logger.debug(`received data change matching ${waitCondition} for ${jsonPtr} with data ${data}`);
-                    resolve(this.output);
+                    resolve(JSON.parse(JSON.stringify(this.output))); // deep copy
                 } else {
                     this.logger.debug(`received data change not matching ${waitCondition} for ${jsonPtr} with data ${data}`);
                 }