OK so last night we bake all the cakes for the grooms cake and wedding cake. We got our crumb coats on and everything was going great. then we notice our wedding cake it turning into the leaning tower of piza. Originally it was supposed to be stacked with a stair step front and a flush back. we got the idea from another cake on here. So we lift up the bottom layer to try to fix the lean. We added cake we cut off of the grooms cake. So again everything is going great. We finally finish what we could at 2:30 am. This morning we go to finish the cake and wouldnt you know it its leaning again and we have horrible humitidy. It was so bad it was hard to breath. the air was so sticky and just uggggg. So we try and try to get it to crust. we have fans going the air on nothing helps. we ended up taking the cake apart after it had been iced because it was leaning soo badly. We completly changed the design with out asking the bride!!!! OMG right. She said she really didnt want whole flowers only petals well she got both. Amazingly enough everyone loved the cake. They sid they loved the look of the frosting. Whatever!!!!! we think they were just trying to be nice. Although nobody looked and gasped in horror. We were horrified and wanted to ACCIDENTALY(SP) knock it in the floor. lol no more last minute wedding cakes for me. I only got 3 hours of sleep last night.

Oh dear, that sounds like a bit of a nightmare! Sorry you had this experience.
Well the leaning is usually a combination of things. Cakes that are not dense enough, not dowelled and boarded enough, unstable fillings or the temperatures being to high so as to cause the icing to melt and be unstable.
Shortening based icings will melt at a temperature between 89 and 99F - you have to also add in the humidex reading. Butter based icings will melt at 83F.
I won't put a cake together in anything over 75F.
You really have to be able to control your room temperature and keep it below 75F if at all possible. This will insure that the heat of your hands doesn't also play a role in icing problems.
Hugs Squirrelly Cakes

thanks squirrely, we werent prepared for the humidity. i know next time to be more prepared. The room we were working in was so hot. even with the fan and air conditoning going, It was just awful.

but it did come out right??? You must have done a great job....nightmare or not... and to look at it....YOU DID DO A GREAT JOB!!! Yes it is not totally smooth but you know what you deserve pats on the back for going through all you did and STILL had a cake to give....I would have died....

I just got dont talking to my cousin who did attend the wedding. She said everyone there was raving about how great both cakes looked and tasted. from a distance i guess it doent look horrible but up close i really wanted to knock it in the floor and be like oh no im sorry.

I'm really sorry. It's awesome that you pulled it off so wonderfully though. So now humidity not only will ruin a good hair day, it will also ruin a cake!! Ahhhhh!!!! lol