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Fixed in 2023.1.0b6, 2023.2.0a2



Found in




Issue ID




Editing terrain becomes slow and editor crashes



Users report that raise and lower terrain causes "Hold On" dialog in editor. Internal users have same behavior.

When I did some testing around this I was able to produce an editor crash. 

Internal discussions




Update - this appears to be a problem in the UndoManager.

  1. Resolution Note (fix version 2023.2.0a2):

    Fixed an editor crash that can happen when editing terrain.

Comments (2)

  1. casperstour

    Apr 20, 2023 16:17

    Why does it says ~"fixed" when it truly isnt.... Everytime i click on the terrain with "paint holes" is pops up "hold on" box after every click meaning i have to paint holes click by click so if i need to paint a massive hole it takes about 7 hours total because as soon as i click the terrain it pops up with the "hold on" BS

  2. MitchDerise

    Jan 25, 2023 23:05

    Ran into the same issue while using set terrain height on 2021.3.17f1

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