I have a few rasters of Landsat 8 imagery I made in GRASS and exported as geotiff files. I can load them fine in QGIS and they display correctly.
But if I save it as a project, then close and reopen QGIS and load the project, the rasters' colour maps are all wrong. There will be lots of white pixels and pixels with wrong colours. Sometimes QGIS crashes randomly with the project open. Removing the layer and re-opening them fixes it. I also notice when I go properties for one of these layers, it takes about 10-15 seconds for the window to come up.
Using 2.16.3. Rasters made in GRASS 7.0.4, with no compression, UInt16 and GDAL colour table. I think it's the colour table that is causing the problem, but I want the colour scheme preserved in the file.