Preview button error 400

[pixelpadre]

All of a sudden (of course) I noticed that on one of my sites some items do no display after hitting the preview button when modifying a product. Some preview fine, others return 400 error.

Here is the difference between those that preview and those that dont at the end of the URL

those that don't have:
new_product_preview&page=1

Those that do have :
new_product_preview

Why is this happening?

[pixelpadre]

Does a lack of responses indicate lack of interest or lack of knowlege?

[Ajeh]

I do not get that ...

My URL contains the following when I click EDIT:

/admin/product.php?page=1&product_type=1&cPath=68&pID=193&action=new_product

and then when I click the PREVIEW:

/admin/product.php?cPath=68&product_type=1&pID=193&action=new_product_preview&page=1

What are you getting on the EDIT for the Product?

What are you getting on the PREVIEW for the Product?

[pixelpadre]

Here are the two URLs for preview:
http://*****/product.php?cPath=14_1&...preview&page=1 (gives me error 400)
http://*****/product.php?cPath=14_1&...preview&page=1 (gives me no error)

They are identical, but one works and one doesnt, they are both in the same category. The only difference I see is one had a model number and the other doesnt.

Here are the two EDIT urls and nice call:

***/product.php?cPath=14_1&product_type=1&pID=33&action=new_product
***/product.php?page=1&product_type=1&cPath=14_1&pID=1&action=new_product

The bad boy has added some extra characters. How why what and when?

[Ajeh]

Is products_id 1 the only Product that breaks like this?

Based on the Edit URLs, I am surprised it is not products_id 33 with the error ...

Are either of these Products Linked Products?

[pixelpadre]

Q1: No, other products in other categories experience same sympton.

Q2: Products are not linked.

Product 1 is the one that doesnt update.

Product 33 updates fine.