[Nick Verlinden]

I have the same issue, except that on my workstation it never even worked in the first place. After installing the 8.6.1 trial, it got stuck at Initializing ACPL Effects, after updating the GPU driver (ATI RADEON HD7950) it now gets stuck at Initializing Composer Window. Davinci Resolve 12.5 is also installed on my system, for the rest it’s a clean machine. To this point, I still have no solution for the problem.