2014 Prius 4 sunroof

Just curious if anyone may know what the root problem would be with my sunroof only working during cool weather. In the mornings is seems fine, but when it gets warm/hot and you try to tilt or open, you just hear a click from the motor area. Once the roof cools down it Seems works fine. Faulty motor??

I also noticed on one occasion where it was opened and when I got to work (hot day), it would not close, but it was sunny thankfully... and when I exited and locked the vehicle, it did not make the tone it usually does if the roof was left open... kinda like it didn’t recognize that it was still open. Later on when the roof cooled and I got in to leave, it closed fine. Opened and closed several time and all was well until the next day.

this is a factory 2014 with the solar roof/Nav package and I will say that glass gets extremely hot in the summer.

thank you for any input you may have,