I added a new Header Account 1-1180 and moved the previous one as a Detail Account 1-1181. Also added few more new Account Numbers from 1-1182 to 1-1189. I expected that all the values from 1-1181 to 1-1189 will be summed up to 1-1180 on the Balance Sheet. But to my surprise, except 1-1181 other new entries were added to 1-1140. 1-1180 and 1-1140 are at the same level on the Account List!
If anyone has come acorss this issue and found a solution, please share.