I am having trouble using the build kits tab. I went through and made sure all the components were available to build the kits. I click the build tab and the program prompts that there is enough inventory to build 2 kits. I enter 2 and then hit the build tab and then ok. When I go to the properties screen the inventory qty is still 0. I copied the kit and gave it another name and did the same process and was able to build the kits the first and only time. Any suggestions?