Symbology settings do not show right in layout and export

[JoostHer]

What is the bug or the crash?

So I have set a point pattern with a certain opacity on different layers that cover each other. Via a geometry-generator I set a common point to all those patterns, as to have the the point patterns match each other and create a diffusing pattern as the circles expand.

In my main map area, this gives following result.

However in my layout area, the patterns shift and the opacity is not shown anymore.

I did something similar with a line pattern. however, here the opacity is appointed to a fill underneath the line pattern.

As you can see this gives no problem whatsoever.
Both the line pattern as the point pattern are the result of symbology settings in the same layer using the rule-based categorisation. So it can't be layer settings either

Steps to reproduce the issue

1. Make a couple of layers where expanding circles are covering each other.
2. Set a point pattern via the geometry generator and appoint a common point to all the patterns.
3. Set an opacity to the point pattern.
4. Go to print layout.

Versions

QGIS-versie
3.22.0-Białowieża
QGIS code revisie
d902269
Qt versie
5.15.2
Python versie
3.9.5
Gecompileerd tegen GDAL/OGR
3.3.2
Gebruikt nu GDAL/OGR
3.3.3
PROJ versie
8.1.1
EPSG-register databaseversie
v10.038 (2021-10-21)
GEOS versie
3.10.0-CAPI-1.16.0
SQLite versie
3.35.2
PDAL versie
2.3.0
PostgreSQL client versie
13.0
SpatiaLite versie
5.0.1
QWT versie
6.1.3
QScintilla2 versie
2.11.5
OS versie
Windows 10 Version 2009

Actieve Python plug-ins
db_manager
0.1.20
grassprovider
2.12.99
MetaSearch
0.3.5
processing
2.12.99
sagaprovider
2.12.99

Supported QGIS version

• I'm running a supported QGIS version according to the roadmap.

New profile

• I tried with a new QGIS profile

Additional context

I cannot share the original files as there's confidentiality mixed in it.

[nyalldawson]

@JoostHer

#50384 fixes the opacity issue

Regarding the placement of points -- instead of using the geometry generator you should rather use this alignment setting to align the points across different features:

[JoostHer]

Where exactly can I find the alignment tool? It doesn't show in my symbology window

[nyalldawson]

@JoostHer
which qgis version are you using?

[JoostHer]

3.22

…

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