Spiggles87, I am having the same issue categories are disabling but not products, did you find any solution? I tried to find out as per dr.byte recommandation but there are so many files and unfortunatly I found this issue when migration from 1.3.9a to 1.5 done in production and I didn't test it in dev before putting it in Production. Any help in this regard will be appreciated. I have two environments in one I have image handler 4 and other without but problem is same in both environments.