Path variable for rclone on macOS Catalina

Welcome to the forum @valenokk

If you’re doing this on Destination screen 2, not Options screen 5, this has been reported, but I’m not immediately able to find a GitHub issue on it. Feel free to file one, even though your workaround is good.

Small gui bug, doesn’t remember some advanced settings

Do the descriptions there match your symptoms? I can’t say how broad this issue is, or why it happens.