So... I pretty much solved this for myself. Their software is junk, doesn't work with Catalina, however, I just used my virtual Windows machine (because I couldn't even get my mac to register the dam SSD), formatted the whole disk to exFat then plugged it into my MacBook. The MacBook then was able to see the device, so I reformatted it to the APFS Encrypted file system and am now able to use it AND have it password protected without having to rely on Samsung's software. Unfortunately for those of you with data already on your SSD that you can't access, this won't help. What I suggest, is to install a macOS virtual machine with the previous version of macOS, and retrieve your data, then reformat the whole thing to the APFS Encrypted file system and do away with the Samsung software altogether. If you are not familiar with Virtual Machines, I suggest downloading Parallels Desktop. It is a fantastic and easy to use virtual machine system that already has mac and windows environments. If you are familiar with them, VirtualBox from Oracle will do as well.
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I get the message that "This software is not compatible with this version macOS." I know that Catalina is still technically in beta, but it's about to be released and if Samsing doesn't patch their software soon, there will be a lot more people that can't access their SSD. Please fix so I can access my data.
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