# Data Viewer List only displayed completely after refresh

**URL:** <https://community.thunkable.com/t/data-viewer-list-only-displayed-completely-after-refresh/1127192>\
**Category:** Questions about Thunkable X\
**Created:** [February 26, 2021, 2:20pm UTC](https://community.thunkable.com/t/data-viewer-list-only-displayed-completely-after-refresh/1127192 "2021-02-26T14:20:14Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![drted](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/drted/32/92694_2.png) [@drted](https://community.thunkable.com/u/drted)\
**Post date:** [February 27, 2021, 11:38am UTC](https://community.thunkable.com/t/data-viewer-list-only-displayed-completely-after-refresh/1127192/2 "2021-02-27T11:38:30Z")

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It is difficult to make suggestions without seeing the blocks you are using.

I have encountered erratic results as you describe (rare on web, more frequent on devices) when using asynchronous blocks.

Check out this thread where I describe the problem and a solution [Wrapping Asynchronous (then do) blocks into a Synchronous Function resolves unpredictable results](https://community.thunkable.com/t/wrapping-asynchronous-then-do-blocks-into-a-synchronous-function-resolves-unpredictable-results/910511)

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