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I have not personally had this happen, but a few more things you can try are:budafuco wrote:Checked, set correct. Thanks. I imagine going back to xnview might be best for now.
-Rename the thumb.db file, restart and see if Xnviewmp can recreate a new file.
-Rename your .ini file, restart and see if default settings fix the issue. (Help>> about will show where this file is.)
-Grab the portable version and extract it in another location, Keep settings so that .ini and .db files all stay within xmviewmp folder.