Chapter-X-tractor 0.962 Adding a Null Cell_ID and Time Stamp at position 12

[enbidia]

010. VOB-ID: 01/CELL-ID: 11 - Len: 00:04:15:76 - TS: 00:39:20:76
011. VOB-ID: 01/CELL-ID: 12 - Len: 00:00:24:53 - TS: 00:43:36:53
012. VOB-ID: 01/CELL-ID: 13 - Len: 00:02:32:63 - TS: 00:44:01:06
013. VOB-ID: 01/CELL-ID: 14 - Len: 00:04:15:76 - TS: 00:46:33:70

Chapter 11 = 00:39:20:76
Chapter 12 = 00:43:36:53
Chapter 13 = 00:46:33:70
Chapter 14 = 00:50:49:46

Please note there is no such timestamp of 012. VOB-ID: 01/CELL-ID: 13 - Len: 00:02:32:63 - TS: 00:44:01:06 in my DVD chapters. I don't know why it always add something like that at position no. 12 with Chapter-X-tractor when open the IFO file with it???