Haven’t had this issue prior to 0.7.5f but I’ve had this occur multiple times today in my latest 1000 pop village.
After placing a dirt road it acts as though I’ve placed it but it is still transparent as though it is still under construction but no builders or laborers pay it any further attention so I’m guessing that, in their eyes, it’s already been built. I cannot click on it to remove or upgrade it, either. I also had several in-game years pass to make sure it wasn’t simply overlooked but the villagers use it as though it’s always been there since I placed it.
It has happened more than once on my current village. I didn’t exit and reload the game to see if it’s still glitched so I can’t answer that question but it’s definitely not acting normal.