Can't import small JPG files

Would you be able to attach your mosaic file and a couple of the jpgs you are using to this thread so we can take a look?

Sure. For some reason I can't attach files to this post. Here's a Dropbox link for the Mosaic file, two sizes of JPG, XCF file (from GIMP where I do the images) and a PNG. 

www.dropbox.com/.../AAAlsXCcTjIHFCi6Mpe0iykRa

I would like to add a JPG to the matrix and not have any bleed.

Sure. For some reason I can't attach files to this post. Here's a Dropbox link for the Mosaic file, two sizes of JPG, XCF file (from GIMP where I do the images) and a PNG. 

www.dropbox.com/.../AAAlsXCcTjIHFCi6Mpe0iykRa

I would like to add a JPG to the matrix and not have any bleed.

I had luck dropping the fixture size to 4px and making the layout 50X800. The ratio is slightly strange when you create a pixel matrix but it still worked.

Could you share the screenshot of map and layout or project, please? Do you still have the colour bleeding problem? 

This looks like it was a bad export from GIMP,  one of the developers re-exported it and it worked fine in Mosaic.
Here is a link to the image

etclink-my.sharepoint.com/.../Ed3lyzOdj71Mqdo9ddD5D9cB2i5sgKYI4tuM8mrjCDa1qw

Just to follow up on this the only difference between you image the this on is the DPI so maybe you need to play with that on other images.

Thanks! I'll try chaning some settings.

But the pink colour bleed between red and white remains. It can also be seen on the image you provided. Probably should make a new thread for this :) 

 Sorry for the delay. Very busy this week

I uploaded your file with some example matrices example file 

I noticed that the "compression" was rounding the fixtures to be on the edge of white and red. I made the map a little larger and bumped the pixels to fit better. 

The easiest method, since this is not a big installation, was to make the fixtures as small as they could go, multiplied the layout size by that size(4*50 and 4*800), used the transform tool to fit the entire array to the new layout, added 4 "dummy fixtures" to the furthest pixels in each corner and create a new matrix with that. it was within a pixel of fitting on the image you provided.

Thank you. I tried a similar solution and it worked. It also looks like it works well with 35x560pic matrix, with pixels in middle of 5x5 squares.

Now it's next step - importing videos of 800pix and 160 pix height....

I am migrating from and old controller, hence would love to use all the previous source files.