Update: This has been resolved in Rebex SFTP R5.5. If anyone is still experiencing problems on UWP platform, please let us know!
Disclaimer: Support for UWP in Rebex components is still experimental, mostly due to the ever-changing nature of that platform, and some features might not work. Also, the experimental nature of UWP support means that we are not running our automated tests on the platform and have not tested whether all possible scenarios work as expected. We hope to add full support for UWP via .NET 6.0.
It looks like recent releases of Rebex components broke compatibility with UWP's .NET Native compiler, which seems to be rejecting Rebex binaries. We'll look into the issue and determine what we can do about it. In the meantime, disabling .NET Native via "Compile with .NET Native Tool Chain" option (or
UseDotNetNativeToolchain project option) should work around the issue.