WE02 Idoc display error - missing segments

Hi,

Has anyone run into this issue before?

In WE02 IDOC list, display an outbound Idoc. Segments with huge data load are split into 2 weird segments folders like this:

Inside each folder, it cotains more than 8000 Z1EX30QTY and the last Z1EX30QTY is not displayed correctly on the screen:

     * Notes: the last Z1EX30QTY (highlighted) should enclose sub-segments in it like other Z1EX30QTY as below:

  .

Double click the one with issue to show the data record. The record is stored correctly in the idoc. I also checked table EDID4, no missing record there.

In WE19 with the same idoc number, the idoc is also displayed correctly.

Does anyone have a solution to this? Highly appreciate your insights.

Thanks,

Chunling