Corner wall problem

[Buttwipe]

I have a problem.
I'm trying to change the wall colour, in the rear-most corner.
When I select that floor square, I can change the left wall ok, but when I change the right wall it flips back to it's previous colour.

Any help..?

[deadpix]

I have a problem.
I'm trying to change the wall colour, in the rear-most corner.
When I select that floor square, I can change the left wall ok, but when I change the right wall it flips back to it's previous colour.

Any help..?

Try this:

Select the wall panel you want.

Tap the floor of the corner (the left wall will be lighted/changed).

Now, instead of tapping the floor again, tap the right wall instead and hold your finger down for about 2 seconds.

When you lift it up, the right wall will be covered with the selected panel and you should again see the message saying "Tap again to place".

This time, tap the right wall again.

The panel should be fixed in place.