Bug report #21624: Layouts with variables/expressions do not update properly after page format change - QGIS Application - QGIS Issue Tracking

Bug report #21624

Layouts with variables/expressions do not update properly after page format change

Added by Andreas Neumann over 5 years ago. Updated over 5 years ago.

Status:	Closed
Priority:	High
Assignee:	-
Category:	Map Composer/Printing
Affected QGIS version:	3.7(master)	Regression?:	Yes
Operating System:	Windows	Easy fix?:	No
Pull Request or Patch supplied:	No	Resolution:
Crashes QGIS or corrupts data:	No	Copied to github as #:	29440

Description

When using variables and expressions in a layout in order to position and size items (e.g. @layout_pagewidth and @layout_pageheight in combination with an expression), then the items do not update properly after a change of page size or orientation.

The sample project contains 2 layouts: "Test" and "Test 2". The first contains only a rectangle, the second one a full layout with all items positioned and sized dynamically.

In QGIS master (3.7) and LT version (3.4 master) it updates, after pressing the "Refresh View" button.

This used to work in the past. The issue did once appear, was fixed, but now it reincarnated again.

layout_update_issues.qgz - Project with 2 layouts demonstrating the issue (7 KB) Andreas Neumann, 2019-03-20 08:42 AM