series and Bundle batch in stock entry makes the item basic rate to 0

Hello,
I want to understand the serial and batch bundle in stock entry because I have an issue while picking the serial and bundle, once when I added item in stock entry, i’ll get the popup of picking the batch and serial and bundle will be created but the basic value goes to 0 again when I reselect the item the basic value changes to the valuation rate mentioned in item.

how can i solve this