I´ve set up several catalog price rules. After applying them everything works fine.
Some days later (it´s a testshop and I dont look after the prices every day) the discounted prices showing up in frontend but if I click on the article the price rules arent active anymore -> first thing u see is a working price rule -> checkout or articlepage -> undiscounted price.
So i applied all the rules again and it worked (checkout too). That was about three days ago - now I´ve got the same problem and I got it working same way as before.
This shop will go live on january 1th so I´m a bit scared of checking it every day... I dont know why this happens neither when.
Maybe someone got this issue too? (catalog price rules seems to disapply in articlepage and checkout after some time)