Not saving rate column in Child doctype currency field

After frappe cloud hosting the app, while saving the record, child item details table rate field not saving. Its working fine in local hosting.

imo, this shouldn’t be dependent on hosting - could you please check the browser’s javascript console and see if there are any errors?

we are assign valuation_rate from item table - Fetch From - field valuation rate, while selecting the item. the valuation rate is not set for the item. is it the reason for clearing the rate field… system showing no rate, user enter the rate and save. but after saving rate column is cleared…

please check this link on how to use “Fetch From” with “Fetch if Empty”.