AutoCAD for Mac 2022 – Lineweights change thickness when zooming (display bug)

[gkathan]

With LWT ON, lineweights visually change thickness when zooming in/out.
Toggling LWT OFF → ON fixes the display temporarily, but the issue returns on the next zoom.

Important: this does NOT happen with all files.
Some DWGs display lineweights correctly, while specific files consistently show the issue.

The problem appears in both Model and Layout.
Plot/PDF output is always correct, so this seems to be a screen redraw / zoom rendering issue, possibly file-related.

Tested with no success: LWT/LWDISPLAY, LINESMOOTHING=0, REGEN/REGENALL, Model vs Layout.

Please, if anyone has encountered this behavior and found a permanent fix in AutoCAD for Mac 2022 (without resetting preferences or upgrading), I would really appreciate your help.

[SLW210]

What are the computer specifications?

 

What OS?

 

Lines, LWPolylines, 2DPolylines or 3D Polylines

 

I doubt there is a permanent fix except to repair the drawings that have the issue, though it could still be an issue with your computer graphics.

 

If it's polylines, try exploding them to lines, then PEDIT them back to LWPolylines, also try an Audit on the affected drawings.

 

You could post an example drawing that has the issue, maybe it will show on other's computers if it's a .dwg issue.