When trying to save my file on Windows 10 (last affinity version 1.9.2), the program says that saving has failed because it has no access to the file any more. Really strange, since I am in the opened file while trying to save it. I have to close Affinity Publisher, open it again, write 1 word, save, close the program, open it again, write another word, etc. - everything that goes beyond 1 word will simply crash the program. What can I do to fix this? Everything worked quite well for 1 month, but since 1 week it keeps crashing on all kinds of different activities. Occasionally it says that it lost the connection to the image files in the ressource manager. Thanks for your help.