Problem with thumbnail in image folder

[yuperi]

If I add mp4 and thumbnail png to page folder it's worked as expected

![](mal1.mp4?display=thumbnail)
![](mal1.mp4.thumb.png)

If I add mp4 and thumbnail png to image subfolder I've got error

![](image://mex1/mal1.mp4?display=thumbnail)
![](image://mex1/mal1.mp4.thumb.png)

[yuperi]

![](image://mex1/mal1.mp4?display=thumbnail)
![](image://mex1/mal1.mp4.thumb.png)

[yuperi]

With grav 1.7.10
![](image://mex1/mal1.mp4?display=thumbnail) give default image from system/images/media
![](image://mex1/mal1.mp4.thumb.png) give error

[mahagr]

Fix is not released yet, see the changed files from the commit above if you wish to test the fix.