Pricing Variations By Shops Not Working


I run 4 shops from the same database say ABC & D. A, B &C have the same pricing and D has 0.00 in its pricing field as it is used as a catalogue only.

For about 20 out of 1800 products have an issue.

What happens:

Using all stores, we set all four shops to the price, say $27.95. THen go back into shop D and convert them all back to 0.00.

However for the 20 products this also changes shop C to 0.00.

If we then go into shop C only and change it back to 27.95 and save we get the confirmation message it has been save however once the screen is updated it has remained at 0.00.

Any one had similar problems? Any suggestions on how to fix? Thanks