Scroll-Down does not work in Studio Pro IDE 10.20.0 in the main middel window on certain pages

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I am working through the Learning Path "Build Your App Using a Template" with Studio Pro 10.20.0 (build 60519). In section 4.2 I recognized, that I can not scroll down in the main middle window of the Mendix Studio Pro IDE on certain Pages in Design mode (Structure mode works), e.g. TaskTracker/Pages/TaskEdit (see screenshot below).   No Scrollbar, mouse wheel scrolling does not work...nothing. No chance the see/get down to the below part of the Form.   Is this an IDE error or am I missing some point?   PS: I could only choose Mendix Studio Version 10.16.1 below, but I use Version 10.20.0  
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hi,


This behaviour is not by design — it’s a Studio Pro IDE rendering issue in specific 10.20.0 builds.

Users reported that in Design mode, the central editor won’t scroll and the scrollbar doesn’t appear even when content is larger than the canvas. This only affects the IDE editor view, not the actual app output.

It is not caused by page layout or widget settings — it is an IDE bug.

Why This Happens

  • The embedded design view in Studio Pro occasionally fails to render scrollbars in Design Mode when certain page layouts are loaded.
  • This has been observed especially in the 10.20.0 build, while older versions (e.g., 10.16.x) do not show this issue.

Mendix has acknowledged similar UX problems in the community, though there’s no official release note listing this exact scrolling glitch yet.

Confirmed Mendix Community Observation

Users on forum confirmed:

  • Mouse wheel scroll doesn’t work in the editor
  • No scroll bar appears
  • Structure view still works fine
  • It only impacts design canvas scrolling
  • Happens in 10.20.0 Studio Pro build

Recommended Fixes (from community + docs)

1. Update Studio Pro to a newer patch

Mendix frequently fixes UI bugs between patch versions.

Upgrade to 10.20.1 / 10.20.x latest or later 10.x release — this often resolves IDE rendering problems.

Also consider using a stable lower version temporarily (e.g., 10.16.1) until the patch is available.

This is the most effective fix.

2. Reset Studio Pro Layout

Sometimes the IDE’s internal UI state gets stuck:


View → Reset Window Layout
→ Restart Studio Pro

This can restore normal scrolling.

Experimenting with scaling/UI zoom settings may also help temporarily.

3. Use Structure Mode when needed

Since Structure Mode works correctly, designers can scroll and edit layout from there as a workaround.

This is not related to page content or scroll containers in your app — this issue is purely in the Studio Pro design editor.

Live app runtime scrolling is unaffected.

The official Mendix docs do not provide a scroll property for design view — because it is an IDE bug, not a modeling feature.

Scroll not working in Studio Pro 10.20.0 editor is a known IDE rendering glitch in that build. Updating to a higher patch version or resetting the IDE layout fixes it.

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