Embedded Components Data Missing?

Hi Experts,

I have two embedded components that attached to the standard Account_TI, EC1 and EC2.

Both ECs have a table(advanced list pane) with the Add functionality (List -> Add Row ), save functionality

will be handled by host (Account_TI).

After added a record in EC1, and navigate to EC2 to add more data. Without press the save button in Account_TI,

record that I added in EC1 are "missing" after I navigate from EC2 to EC1

Anyone encountered this issue before? Any idea how to prevent these?

Thanks,

Alviss