Error opening two videos with VideoReader

Hello,

In my code I am opening a first video. When I did what I wanted with it I delete the corresponding Object and open a second video. The problem is that matlab doesn't actually open the second video but still the first one, as if it was "stuck" in the memory. At the beginning I thought the problem was linked to the fact my startup disk was almost full. Now it is not the case anymore, I reinstalled Matlab but it is still not working. The funny thing is that when I change the names of the videos, the code works fine the first time I run it but the second time it is going wrong. The code below is the one not working. (What is really weird is that it is working on another computer even if mine seems pretty ok) Thanks,

close all
clear all
OBJ1 = VideoReader('Video1.mp4');
delete(OBJ1);
OBJ2 = VideoReader('Video2.mp4');
figure(1)
imshow(readFrame(OBJ2));