[4.7.6] Undo doesn't affect material assignments

Development Rendering
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1

Hi there,

I accidentally assigned a wrong material to an element slot in static mesh editor. Couldn’t remember original so I just triggered an undo. Instead, my last change in level editor was revoked.

It seems, that changes in material list aren’t saved in undo protocol.

2

Hi -

I am not seeing that behavior in 4.7.6. Can you look at my reproduction steps below and see if you are doing anything differently and let me know?

  1. Create a New Blank Project with NO Starter Content
  2. Add a Sphere Static Mesh from Modes Window to Level at (0,400,200)
  3. Move Sphere across platform to (0,-400,200)
  4. In Sphere’s Details panel, select dropdown for Material
  5. Under View Options, Turn on Engine Content
  6. Select Any material
  7. Back in Viewport, Select Platform
  8. CTRL-Z, Sphere is reselected
  9. CTRL-Z, Material assignment is undone
  10. CTRL-Z, Sphere moves back to (0,400,200)

Thank You -

Eric Ketchum

3

Hi Eric,

thanks for investigating this. It works fine in details pane, but not in the static mesh editor.

Reproduction steps:

  • Double click on a static mesh in content browser
  • Change a material
  • Press STRG+Z

Video

4

Hi -

Thank you for your clarification. I was able to reproduce this issue internally and have reported it for further investigation toward a solution, UE-16144 for reference. As soon as we have new information, I will report back here.

Thank You again -

Eric Ketchum

5

It’s 4.10.1 already and this bug is still not resolved.

6

Hi nikoliazekter,

There has been no change on status of bug report yet. We will update this post when we see any movement on it. Thank you for update.