VLC media player suddenlly stopped playing .m2ts files?

Question

I'm new to ubuntu and I am using vlc player suddenly it stopped playing m2ts files all other files are ok except for m2ts

I think this happened after I executed the following commands:

sudo add-apt-repository ppa:danielrichter2007/grub-customizer
sudo apt-get update
sudo apt-get install grub-customizer

from this link:

Make Ubuntu first option when dual booting

any help to fix this...

Answer 1

I found out what the problem is. it is because there is a subtitle file in the same directory of the .m2ts file. I placed it but I never thought that this might be the problem so I didn't mentioned it. I removed the subtitle and the file worked correctly, I placed the file again and it stopped working. ridiculous.