Could you please clarify if the issue persists when using the AutoHotkey software that you’ve mentioned earlier? If so, please note that per our Support Policy, we’re unable to assist with third-party related issues. You might want to contact the AutoHotkey support team and see if they’re able to assist you.
Indeed it is due to AHK. If I copy locally an email address that includes the @ character, I can paste it remotely with RU. However, If I use AHK to remotely expand that same email address, the @ becomes a 2. Same with other special characters.
I'll have to ask the AHK people how to fix this. Thank you.