Help with Putty Connection Error

I recently upgraded my workstation to Windows 10. I am using a SQL database as a data source so all of my connections got restored, including all my putty connections. I also backed up / restored my putty sessions using regedit. I can see all the connections in putty and am able to connect to them inside putty.

When I try to connect to them inside RDM, I get the following error message:

When this message appears, the putty window actually still opens in the background (even though I have embedded selected) and it's connected to my session.

When I turn on the debugger messages I get the following:

Specs:
Windows 10
RDM Enterprise v14.1.3.0 64-bit
Putty 0.70 64-bit (installed via chocolatey)

I was previously able to connect before upgrading to windows 10 with no issues. As mentioned, I can still connect to my sessions in and out of RDM except I just have these errors popping up. How can I resolve this?

Thanks