No longer locking?

[mcamnl]

I have been pairing my male Pewter to my female Enchi this season. Started last November. Have witnessed several good locks. Usually hook up within hours of being put together.
2 weeks ago we moved. Pretty smooth transition. Everyone is still eating well.
Friday I put them together again and they don't want to have anything to do with each other. Just curled up together in the back of the tub.
A couple of differences in the environment. The rack is in a more open area.
A little more light, a little more traffic with my boys bedrooms being in the area. My ambient temps have also dropped a little. I was able to keep the old room at right around 80.
Now ambient is more between 70 and 75. Hot spot still holding good at 90. Humidity is still good.
I am planning on changing the tubs to ones that are not clear to help darken things a little.
I am guessing there may be a little stress from the change in the environment that is causing this? Or do they tend to stop locking when the female has progressed beyond a certain point?
This is my first attempt at breeding so I just want to make sure things are still ok. My incubator is all ready to go if we get any eggs this year.

[Ladybugzcrunch]

If the situation had not changed and they did not lock I would say your female may have ovulated and there may be no need to pair anymore. However, since stress may be a factor you may not know. Usually when a pair refuses to lock, I pair one more time (full time) checking twice daily. If no locks the second time, I cease pairing that female for the season. Once they stop locking you still have a couple months before eggs.