Ive uploaded to freshdesk ticet 178977, i cant seem to find the especific error, i know its related to proxys because at some point changing the maps, ajustint materials or selecting/moving the computer crashes, did the same process on different machines with crashes all the time but not always the same thing (some times after adjusting the materials with interactive and sometimes after finishing and then selecting ) also notice that on some proxys the keep in memory option was on with point cloud, this proxys were made with v5rc2, ive uncheck this thinking that maybe this was the issue but no, it crashes, ive revert to previous last night, not sure if my scene works for you as a reference but i will manage to select the proxys with textures today.