DMS 1.11 is the last legal version, all releases after that were just unlicensed hacks from scene groups (that's why they're not on Aminet). Many DMS versions throw Enforcer hits and, as you noticed, sometimes a DMS archive can only be extracted with the exact same DMS version that was used to create it. DMS' error handling is generally a nightmare, anyway.
Stay clear of DMS, ADF is the much better and safer alternative. And you can mount ADF images without having to write them to a disk.
