I cannot get Atlas to export maps with web layers correctly.
When I look at the preview within composer everything works fine. When I export an atlas the first page renders ok but for subsequent pages only a couple of tiles are usually generated.
My suspicion is that QGIS is rendering faster than the web layers can be downloaded.
I suggest that if it is possible to slow down the rendering process this will allow time for tiles to download.
I have no idea how to do this but maybe a developer can tell me how to slow down the Atlas rendering process to allow for tile downloads?
A similar question has been raised before on the GIS SE as Problems while rendering with Atlas.
My question is not the same because I am looking for a way to either test out my hypothesis or for somebody to tell me that my hypothesis completely wrong.