Pages in Documentation

../images/architecture/2024/door-settings/thumbs/03.jpg
Settings ../images/architecture/2023/ui32/thumbs/01.jpg
UI3 Overview ../images/architecture/2022/doorsv2/thumbs/01.jpg
[old] Doors UE5 ../images/architecture/0040/quick26/thumbs/00.jpg
Quick Guide 2026 ../images/architecture/0040/quick/thumbs/01.jpg
Quick Start ../images/architecture/0040/swap/thumbs/01.jpg
Swap Actor ../images/architecture/0040/custom/thumbs/00.jpg
Custom Assets ../images/architecture/0040/system/thumbs/01.jpg
System Drawings ../images/architecture/0040/steps/thumbs/12.jpg
Guide 2022 ../images/architecture/0040/faq/thumbs/01.jpg
Tips & FAQ ../images/architecture/0040/settings/thumbs/03.jpg
Guide 2024 ../images/architecture/0033/bugs26/thumbs/00.jpg
Fix Bugs ../images/architecture/0033/faq26/thumbs/00.jpg
FAQ ../images/architecture/0033/cost26/thumbs/00.jpg
Cost Tracking ../images/architecture/0033/gamemode/thumbs/00.jpg
Modes ../images/architecture/0033/features26/thumbs/00.jpg
Other Features ../images/architecture/0033/designer26/thumbs/00.jpg
Designer ../images/architecture/0033/edit26/thumbs/00.jpg
Edit Scene ../images/architecture/0033/var26/thumbs/00.jpg
Var Actor ../images/architecture/0033/uidesign/thumbs/00.jpg
UI Layout ../images/architecture/0033/quick26/thumbs/01.jpg
New in 2026 ../images/architecture/0033/mup/thumbs/00.jpg
Multi-Unit-Prj ../images/architecture/0033/csv_export/thumbs/00t.jpg
Google Sheets ../images/architecture/0033/data/thumbs/00.jpg
Data Tables ../images/architecture/0033/videos/thumbs/01.jpg
Video Guides ../images/architecture/0033/videos/thumbs/01.jpg
Quick Videos ../images/architecture/0033/designer/thumbs/00.jpg
Designer ../images/architecture/0033/cost/thumbs/00.jpg
Cost Tracking ../images/architecture/0033/features/thumbs/08.jpg
Widget Panels ../images/architecture/0033/quick/thumbs/00.jpg
Quick Guide ../images/architecture/0033/settings/thumbs/15.jpg
Scene Settings ../images/architecture/0033/connect/thumbs/02.jpg
Connect BP ../images/architecture/0033/vr/thumbs/03.jpg
VR projects ../images/architecture/0033/history/thumbs/00.jpg
Version History ../images/architecture/0033/preview/thumbs/01.jpg
F. w. Preview ../images/architecture/0033/bugs/thumbs/01m.jpg
Fix Known Bugs ../images/architecture/0033/design/thumbs/01t.jpg
UI Settings ../images/architecture/0033/layout/thumbs/02.jpg
UI Layout ../images/architecture/0033/game/thumbs/07.jpg
Gamemode ../images/architecture/0033/faq/thumbs/08.jpg
FAQ + TIPS ../images/architecture/0023/quick26/thumbs/00.jpg
Quick Guide ../images/architecture/0023/v4-functions2/thumbs/05.jpg
V4 Functions 2 ../images/architecture/0023/v4-functions/thumbs/01.jpg
V4 Functions P1 ../images/architecture/0023/v4-quick/thumbs/01.jpg
V4 Quick Guide ../images/architecture/0023/history/thumbs/02.jpg
Ver History ../images/architecture/0023/v3-placements/thumbs/02.jpg
V3 Placements ../images/architecture/0023/v3-mesh/thumbs/02.jpg
V3 Mesh Def. ../images/architecture/0023/v3-segments/thumbs/03.jpg
V3 Segments ../images/architecture/0023/v3-quick/thumbs/01.jpg
V3 Quick Start ../images/architecture/0021/v2/thumbs/01.jpg
Books V2 ../images/architecture/0021/v1/thumbs/01.jpg
Books V1 ../images/architecture/0019/custom/thumbs/01h.jpg
Customize ../images/architecture/0019/overview/thumbs/00b.jpg
Quick Guide ../images/architecture/0019/swap/thumbs/01.jpg
Swap Actor ../images/architecture/0019/faq/thumbs/01.jpg
FAQ + TIPS ../images/architecture/0019/v2/thumbs/01.jpg
Doors UE4 (V1) ../images/architecture/2021/ui3-bugs/thumbs/02.jpg
3.1 Bugs Fixes ../images/architecture/0040/history/thumbs/02.jpg
Ver History ../images/architecture/0023/v2-generic/thumbs/01.jpg
V2 Generic BP ../images/architecture/0023/v2-examples/thumbs/01.jpg
V2 Examples ../images/architecture/0023/v1/thumbs/01.jpg
V1 Railings Fences ../images/architecture/2019/guide1/thumbs/01.jpg
UI 1 - Part 1 ../images/architecture/2018/03/thumbs/06.jpg
UI 1 ../images/architecture/2019/guide2/thumbs/01.jpg
Ui 1 - Part 2 ../images/architecture/2019/ui2/thumbs/01.jpg
1 Overview ../images/architecture/0013/features/thumbs/04.jpg
UI2 Features ../images/architecture/0013/start/thumbs/01.jpg
UI2 Get Started ../images/architecture/0013/infomap/thumbs/06.jpg
UI2 Info Map ../images/architecture/0013/actors/thumbs/01.jpg
UI2 BP Actors ../images/architecture/0013/users/thumbs/01.jpg
UI2 User Manager ../images/architecture/0013/faq/thumbs/03.jpg
UI2 FAQ ../images/architecture/0013/tutorials/thumbs/06.jpg
UI2 Tutorials ../images/architecture/2021/ui3/thumbs/01.jpg
UI3 Overview ../images/architecture/0033/start/thumbs/00.jpg
Getting Started ../images/architecture/2021/ui3-infomap/thumbs/02.jpg
3.1 Info Map ../images/architecture/0033/variation/thumbs/01.jpg
Variation Actor ../images/architecture/0033/other/thumbs/00.jpg
Blueprints

Known Bugs And How To Fix Them

Known Bugs in UI3 and possible solutions. This may require editing some blueprints or widgets.

Some things are easy to fix if you do not want to wait for an update, or if you do not want to risk your work is being lost because of an update.

Content:

Mesh Disappears while setting Mesh Variation

Packaging Failed (2026-04.1)

Google Sheets exports not working (2026-04)

Mesh Disappears while setting Mesh Variation

Bug

The mesh disappears when linked to the Variation Actor or the Mesh Variation Type is set to other than Disabled.

This is because the Actor World Transform isn't set in the variation actor. The mesh is therefor moved to position 0,0,0.

Work Around

Copy the mesh's Transform into the variation actor's Actor World Transform before linking the mesh to the variation actor.

Get fixed Variation Actor UI3 5.5 - 2026-02

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Packaging Failed (2026-04.1)

This only affects packaging, not playing in editor.

There are three widgets that need to be recompiled and saved. Nothing needs to be changed. The files are in UI/Widget

  • UI3_ButtonIcon
  • UI3_ButtonText
  • UI3_ButtonWithText

Fixed in version 2026-04.2

image

Google Sheets exports not working (2026-04)

Problem and Cause

Only the Features are exported into the user's Google Sheet.

The widget UI3_MainMenu_GS might have the wrong GID variables connected.

Fix

Open the widget and navigate to the Graph window. Look at the 2 areas at the very bottom. Check if the GID's for Selections GID and Features GID are used. There might be the Costs GID variable connected instead.

Drag the replacement variables from the Main Menu pin. Compile and Save.

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