Tried, issue stays the same.
After another gazillion hours of digging, i found that the input LUT's are saved with the project, which causes the project file to balloon in size. This is the only thing so far i've found that could possibly have something to do with the problem. Once grading is going on, the project size keeps ballooning, and it might - might - cause some unforseen issues. Would love to hear from the technical side on this.