No error message.
I typically export at 2000px and the file in the tmp folder is around 400kb.

In case its relevant I'm on Sonoma 14.5, and have the following plugins installed:
- Change color
- Export plan to Image
Multiplier
Pan in 3d view
Plan rotator
Plugins manager
SVG tuner
Staircase ...

I am on version 7.4.1 of Sweet Home on a Mac M1, and have installed ver 1.0.2 of the Export Plan to Image plugin ExportPlanImage-1.0.2.sh3p.

When used, the plugin creates a zero byte png file in the destination folder (/Users/m1/Library/Containers/com.eteks.sweethome3d.SweetHome3D/Data) and a .tmp ...

Thanks Emmanuel - yes I am using macOS. I just never thought to proceed without shutting the blank home first. Now that I've seen how the programme replaces the blank window I'm kicking myself

Ugh noooo!
I've been using Sweet Home for a few years and every time I load the programme I have been manually closing the blank home before opening the home I want to work on. I didn't realise that when an existing home is opened it replaces the default blank one.

Thank you Hans!

When I launch Sweet Home the programme opens a new blank home by default. Is there a way to stop this behaviour?
Thanks for your help.

I found a solution using the trackpad on my Mac.
Press/hold Cmd and slide two fingers on the trackpad to increase or decrease zoom.

Thanks for the quick reply. Good idea to use an alias.

I installed the Save to Image plugin and it's great. Except it only allows me to save within the Sweethome data location - I can't save to desktop or to Documents etc. I'm using Sonoma.

Is there a setting or workaround please?

I upgraded to MACOS Sonoma and Cmd+ doesn't work to zoom in. Zooming out works fine with Cmd-

Any pointers?