I am working on a project with several QGIS Project files. I have one Project file with certain layers and settings which I copy every time I need to create a new Project file within this work. I have used a composer template to print maps with identical framing from these different Project files. It has worked fine for long, until these several issues appeared at once:
- I loaded once again the composer template but the map in the template appears blank, and does not reappear by Refreshing the View.
- I can add a new map frame to the template, but the map scale appears incorrect. For example I set the scale to 1:10'000, but it gives me a map with a scale of 1:5000. Scale bar equals to the scale of the map, not the setup in scale bar properties. There is only one map frame in composer.
- I create a completely new composer inside the current Project file, but the scale issue remains.
- Also these issues appear in all the composers which I had created earlier in other Project files under this work.
However the scale problem disappears when I create a completely new Project file. It seems that the root of the problem is in the Project file - but where to start looking for the reason? I have not changed any setup in Project file, at least not consciously. I didn't find similar issue from earlier Questions.
I am working with QGIS 2.18.11 in Windows 10 Pro. Since I started this work I have updated QGIS twice, but I am not sure at which point this issue appeared.