I began to notice that when opening a video in windows explorer while VLC was already running, it would create a new instance instead of loading into the instance already opened. I have the program set to only allow a single instance, and went into settings to confirm this. Every video I clicked on however would still open a new instance of VLC. I looked in my Task Manager and that's when I noticed several (4 at first) processes of vlc.exe running. I ended them all and VLC worked as normal, only opening a single instance.
The weird thing is that it keeps happening though and I am unsure why. It will be fine for awhile, but then when I decide to come back to my computer several hours or a day later and begin opening videos, I have to go into task manager and end extra vlc.exe processes so that it will stick to one instance. Sometimes it's just 2 processes running but I've seen as many as 6 at once, It never seems to happen when I am actively watching videos, but if I leave one paused for a long time or come back to using videos after awhile it seems to occur. I really have no frame of reference to say under what circumstances it is occurring except that it is very frequent, I am seeing it at least daily.
Any idea of possible solutions?