I had just same issue Zbynek mentioned with 10.4.5 version. Some GeoTIFF files when added are asked to be converted into shapefiles resulting into error while previous versions (10.3.6 f.e.) recognized it properly. Sample file and message images are attached. I have also an issue with cyrillic characters, that are not displayed correctly while reading file attributes or writing annotations. Thats in my long-long term wishlist to be fixed)) Test.rar
I would like to request ETS package implementation for Modflow-USG. Exponential ET(z) and W(z) functions are of great importance for my researches and the only option for its approximate input is ETS package which is currently not available for unstructured grids. It would be really great to use it in future versions of GMS.