Hi, check this lib (- Updated LZMA SDK compressor from v22.01 to v23.01 (2023-06-20)), lately I very often on different PCs get a utility hang using srep+LZMA-MT, usually it happens when the progress reaches 100%, but it can happen that the progress stops at 40-80%. I create 24gb disks, but the freeze happens when packing a much smaller folder.