I already did CHAT, but they said that's developer's work.  I "sent" the return (draft) to the representative of CHAT, and he understood my problem but he couldn't know how it happens and how to address this issue.  He promised to notify the developers of this problem, but he couldn't say if they are actually working on this issue or not.  Can't you see this a problem of PTO?  Why does the program calculate, when it shouldn't calculate, the beginning capital balance of each partner, by using the ENDING percentage?  It doesn't make sense.  
And didn't you notice that many others posted similar questions, although the area of the questions are different, but all of the questions' bottom line is the same.  The program changes and calculates capital accounts when it shouldn't, and therefore, some of elements in the capital accounts are wrongly changed.