Some of my files are getting locked. It seems like after I look at a file a few times, it turns up locked in the documents folder.
How do you open the files and how do you close the file. All details are important to be able to understand the reason why files lock up. It might be best if you take notes while opening and closing the files - at least I would do it.
Are these files located on networked storage, NAS?
This mentions in the discussion that backup software can cause problems.
OTOH we have LO 6.3 now and the OP had not reacted to the 1st comment for almost 5 years, time to close the question?
Mine does this when I open a file more than once without closing. I’d close the window and look for another open instance of the file in another window. I would quit Libre Office and then reopen it form the recent document list.