Had a weird incident recently where I had multiple text (.txt) based documents that I had written myself (basically notes, reminders, scratchpad stuff) and I'm using notepad++ and with multiple tabs open. I don't have the MS notepad open nor do I have any other editor application (such as Word etc) open/running. I only have one instance of (multi-tabbed) notepad++ open.

I was doing something in the web browser and switched to the notepad++ application, suddenly I get the prompt about "Reload -- This file has been modified by another program. Do you want to reload it?" and out of habit/instinct I just clicked on "Yes" to get the nag dialog box out of the way, hoping then I could tab over to the text file that I had been using as a pastebin for my copy/paste clipboard of things I was copying from the firefox/chrome browser....

Immediately I'm presented with another such prompt, asking me the exact same question about if I wished to Reload this new tab/ additional text file, that is when I got a bit suspicious since I new for sure I hadn't been updating two different text files... so I took a screenshot with greenshot of it.... then to my surprise after this time clicking that No I didn't wish to reload, I'm prompted a THIRD time about if I want to reload yet ANOTHER tab/instance/textfile! I also click No....

Afterwards since each time it shows the exact path of the text file in question that is asking about reload, I go to the path on the Windows Explore (I'm using Windows 10) and right click each of the text files to check the Created, Modified, Accessed etc and they were from back in late October!

These text files are in a directory that is sync'd by MEGA (sort of like dropbox) with revisions, so I log into my MEGA account and check the revision histories to see what is going on.... Then I download a couple of prior revisions and confirmed that indeed the data looks good, no sign of data corruption or somehow a revision accidentally reverting by mistake, and indeed the MEGA revision confirmed what Windows Explorer confirmed, and that is there hadn't been any changes since October to the files....

Yet, I reboot my machine each night, and my computer hadn't been up for more than 12 hours from the last reboot, I don't do sleep or hibernation, so there is no way I could have had this notepad++ instance open for more than a few hours.... The tabs that I had open weren't edited/modified since October, and yet tonight for some strange reason I got prompted by Notepad++ stating that these files have been changed and asking me if I wish to reload?

My question is there a bug with Notepad++ that could be doing this false alarm/alert or is it that my computer is compromised somehow and files are changing behind the scenes without me being aware?