# Dataprep crashes editor **URL:** \ **Category:** Community & Industry Discussion\ **Tags:** unreal-engine\ **Created:** [August 6, 2021, 11:00pm UTC](https://forums.unrealengine.com/t/dataprep-crashes-editor/244283 "2021-08-06T23:00:31Z")\ **Posts on this page:** 1\ **Showing post:** 12
**Author:** ![UE\_FlavienP](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/ue_flavienp/32/1194546_2.png) [@UE\_FlavienP](https://forums.unrealengine.com/u/UE_FlavienP)\ **Post date:** [December 14, 2022, 11:20am UTC](https://forums.unrealengine.com/t/dataprep-crashes-editor/244283/12 "2022-12-14T11:20:22Z")
Can you guys checked it is not link to the bug described there: > [@Visual Dataprep Viewport Crash](https://forums.unrealengine.com/t/visual-dataprep-viewport-crash/715278/2): > > We are still investigating but for some reason UE is removing some files necessary to the dataprep. Those dirty assets (with the stars) are missing in your plugin dataprep core To get them back you will have to do a “verify” on your UE install in the epic games launcher To not lose them again, do as @Antoine_Guillo recommends: after running dataprep they will be marked dirty, when you “save all” assets or quit unreal, Untick them and do not save those assets Running dataprep will modify some assets (that should not happen) and when closing project if you save those assets they will be removed from the engine content. Any subsequent dataprep import will then crash. --- _[View the full topic](https://forums.unrealengine.com/t/dataprep-crashes-editor/244283)._