Displaying viewport from layouts

[gfranco42]

Describe the bug
It seems that viewports can't be displayed when changing layout
I got a dwg file with a layout that shows multiples viewports. On DWG TrueView 2026, it shows well. On my viewer, I can show everything except the 4 items

To Reproduce
Steps to reproduce the behavior:

AcApDocManager.instance.curView.activeLayoutBtrId = currentLayout.blockTableRecordId

Expected behavior
I would like to display everything from layouts

Screenshots
DWG TRUEVIEW:

MY VIEWER:

Desktop (please complete the following information):

• OS: windows
• Browser Chrome
• Version
  "@mlightcad/cad-simple-viewer": "1.4.7",
  "@mlightcad/data-model": "1.6.8",

[mlightcad]

@gfranco42 Can you attach the dwg file so that I can reproduce this issue? Thanks in advance.

[gfranco42]

@mlightcad sure

test_layouts.zip

[mlightcad]

@yanzexuan1 Can you help fix this one?

[yanzexuan1]

Sure, I'll take a look