Tile Background preview error

Link to .capx file (required!):

dl.dropboxusercontent.com/u/108499873/TileBackgrdbug.capx

Steps to reproduce:

My project suddenly previewed tiled backgrounds incorrectly. I don't know why.

1.

2.

3.

Observed result:

There's a big gap between each image.

Expected result:

There shouldn't be any gap

Browsers affected:

Chrome: yes

Firefox:

Internet Explorer:

Operating system & service pack:

windows 8.1 (!!!! maybe, I just updated)

Construct 2 version:

   149

Can't reproduce on Windows 8 with Chrome. Check your graphics card drivers are up to date.

Ashley it needs to be tested with windows 8.1!!

I think thats the problem. Please take a look.

BTW it only exists in a capx I created with win8 and open in win8.1. If I create a new file, the issue doesn't exist.

It sounds exactly like a graphics card driver bug, which is more likely to occur when updating the OS.

Ashley, yes you are right its my driver, which unfortunately is not supported any more by AMD!

Is there any (easy) possibility for you to add software rendering option to C2 so it doesn't have to rely on the graphics card? My processor would definitely be fast enough.