Unable to swap connection styles

[iNDiGOxNOiSE]

Made an account to drop this here, but for some reason I'm unable to swap between connection styles (line, link, arrow, etc.) from the drop down menu given. I can open the menu, but when I click on whichever style I want it stays locked into "Line". The other drop down menus, like "Waypoints", works fine. I have tried reloading the project, restarting my PC, etc. to no avail. Just looking for this to be fixed, thanks :)

Little recording of the exact issue:
https://gyazo.com/3be13208fd8788808764543952b84476