If you are still crashing with resolutions higher than 4096 pixels in any one direction (for example, 5760x1080) after updating to 126.96.36.199, I'm sorry. I've put in as much troubleshooting as possible without being able to reproduce the issue in-house...which is my next step.
Right now, I'm running on a 2560x1440 monitor with a GeForce GTX 760. I'm going to see if I can get another two monitors attached to this guy this week in hopes of breaking the ultra-wide resolution barrier and I'll see if I can reproduce the issue under a debugger then.
It's currently looking like a write-after-free bug with a render target.
If anyone can attach a debugger to their Terraria.exe process patched to 188.8.131.52 with v0.7 before then and can get me any detail, I can work on patching it, but until then, I'm stuck.
Sorry for the delay.