Hi all. I've just been trying to do a quick re-paint of the Gtrax Berkshire and tender, but the tender texture is proving to be extremely trying. I've opened the
gx_berk_tend02 texture up with RWTools, edited with Photo Shop, but I am unable to get it installed back into Railworks without crashing serz and upsetting RWTools. The TgPcDx file converts to DDS just fine, but it opens up at a native 2048x2048 resolution. RWTools shows it as a DXT3 ARGB - 8bps - explicit alpha file with 10 mipmaps; and after editing, I save it as such. Using RWTools, I attempt to convert it back to a TgPcDx file and that's when serz crashes.

I have also tried reducing the file to 1024x1024, and if I correct the xml file to reflect the size change and also delete the folder's Blueprint file, I can get it converted and installed back into Railworks. However the model texture only then ends up distorted, because the texture is too small to wrap over the model correctly. I am tired and out of ideas now.
I am hoping that someone here has a solution or can point me in the right direction to finding one. Anything at all will be deeply appreciated. Thanks in advance.