Csv Imported product shows error when editing the product

[umesh.c]

On my prestashop store (version: 1.6.0.6), I used the csv import to import products. It did its job and imported the product.

 

When i tried editing the product (actually disabling the product), the appears two errors

2 errors 

1. Products must be in at least one category.
2. This product must be in the default category.

When i looked under the association tab  the categories are there and even the default category is the first selected category.

I tried to save again and it was successful.

The problem here is that the categories error appears only when i do not change tab on the product edit section.

Need quick solution.