I took advantage of the upgrade to VLC V3.0.3 Vetinari a few days back. Now virtually every .MP4 file I try to play from any source has anywhere from 2 to 8 or more seconds of large pixelated green blotches that dance on my screen. Sometimes a fast-forward jolt works to eliminate them but usually not. There is nothing specific I can do to make them disappear. They just have to "wear out". Every successive video in the playlist demonstrates this same problem.
I have done nothing but upgraded to this new version. I was watching a friend's video from his vacation and the upgrade came on so I upgraded and now every video I have that played fine from the start now has green blobs at the beginning. As I said, I changed nothing. I used the same procedure I always have when upgrading.
I have a Windows 7 system running on an HP all-in-1 desktop with 4 GB of core and dual 2.4 ghz processors (I think - not sure about the speed). It doesn't matter if I reboot, load or don't load my usual stuff.
It is disheartening to have used VLC for many years with no problems at all and then have to spend all this time getting through all the procedures to register and log in and check emails etc, just to report a problem that a new version has caused.
I will look for an answer and attempt to assist you with the problem solving but until it is solved I am removing this version and going back to the previous one.
There is one other minor issue -- the text in the play list dialog is so small as to be almost unreadable. This was not the case before the upgrade either.