My issue is the following:
1. Click on omweather applet and select the "settings" option (spanner icon).
2. Select "Visuals" tab and change the "Layout" to a different option.
3. Save by pressing the save icon (green tick icon).
4. Click again on omweather applet and select the "settings" option (spanner icon).
5. Select "Visuals" tab again and change the "Layout" again to a different option or the previous option.
6. Save by pressing the save icon (green tick icon).

Result:
The last change to layout doesn't save. If I try to access the settings option (spanner icon) again the applet just returns me back to the desktop without opening the settings tabs.

Workaround:
1. De-select omweather applet from the desktop applets.
2. Open omweather application (as distinct from the applet) and access the settings from there and make changes.
3. Re-select the omweather applet on the desktop applets.

I'm using the latest omweather debug release that you posted in post #259

Note: The above doesn't happen all the time so unfortunately it is somewhat intemittent. However it does happen most of the time.

I'm using an n800 with Diablo version 5.2010.33-1 OS.

Attached is my omw.log