# Flex Repeater not working on preview mode **URL:** \ **Category:** Ignition\ **Tags:** ignition80, ignition81, perspective\ **Created:** [May 12, 2022, 1:59am UTC](https://forum.inductiveautomation.com/t/flex-repeater-not-working-on-preview-mode/59484 "2022-05-12T01:59:33Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Manu\_Balakrishnan](https://avatars.discourse-cdn.com/v4/letter/m/a3d4f5/32.png) [@Manu\_Balakrishnan](https://forum.inductiveautomation.com/u/Manu_Balakrishnan)\ **Post date:** [May 12, 2022, 1:59am UTC](https://forum.inductiveautomation.com/t/flex-repeater-not-working-on-preview-mode/59484/1 "2022-05-12T01:59:33Z")
Hi Team, I have a user dropdown, dropdown change creates an array and assigns to custom property (array type), It is binded to instances property in Flex Repeater. **Issue 1** On preview mode, when I change the dropdown Flex repeater is retaining the old values, but when I switch to design mode it shows the correct current value. **Issue 2** First drop down change creates 3 instances, and second dropdown created 2 instances. But on preview mode, Flex repeater is retaining the old 1st item, only 2nd one is getting updated In both scenarios, I checked the custom property it is changing correctly though. Please share your thought. Thank you Manu ---
**Author:** ![Daniel\_Shevchyk](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/daniel_shevchyk/32/48654_2.png) [@Daniel\_Shevchyk](https://forum.inductiveautomation.com/u/Daniel_Shevchyk)\ **Post date:** [May 23, 2022, 9:25pm UTC](https://forum.inductiveautomation.com/t/flex-repeater-not-working-on-preview-mode/59484/2 "2022-05-23T21:25:23Z")
How are you writing to the instances of the Flex Repeater? Can you provide any clarity on that script/action? It seems like issue 1 and 2 are related and still fall back to how you’re writing to the instances themselves.