Hi Mattymore,
Thanks for the updates.
Based on my experience, after we click “OK” to launch the Word application, the Word application will launch and after a while, the contents of the files will be rendered inside. However, regarding “it launched Word but then opened to the document gallery rather than the document I was intending to open”, it seems it isn’t a normal situation, so could you provide some related screenshots on this so that we can check the exact situation of this issue?
To upload screenshots, click Use rich Formatting in this thread and select Insert Image.
Could you create a new word document with few words inside and try to open it to check the issue? And could you try opening another file in this library, for example, an Excel file?
Please post back with the information above for further investigation. We will help you further.
Regards,
Charles