Really? Thats not good. What kind of browser are you using or are you playing on windows? Can you send a screenshot to the discord or in here? Do you have a normal mouse or something special? Can you move resources or connections still?
Sorry, I restarted based on your suggestion about right-click being enabled after the second research, that does work.
I'm playing on Firefox. Normal mouse. Connections and resources still worked. Maybe the flag wasn't set from the older save, since machines were moved with left click in the previous version?