The plastic that supports the hinge of the bat wing is a fairly common failure point. At some point you may hear the telltale 'crack' if the wing does not clear the roof on the way down. You might find there is already a fracture in the plastic. I do not have a good way to fix it but have often wondered if those hot staple plastic repair machines would work. I tried various glues, epoxy and even a drilled holes round it to use a zip tie to improve support for the plastic but in the end it failed. If I had my time again, I would probably try the hot staple. If it does fail, you can remove it and the top will still operate. You just end up with an unsightly bat wing sized hole.
Hope you find a way to fix it.
Hope you find a way to fix it.