Hi.
We updated to 10.8 from 10.7.* and couldn't build our repository indexes. The event viewer showed the following Error (for almost all products):
2024-09-26 12:37:16.6854: Error processing products. System.Collections.Generic.KeyNotFoundException: The given key '408088242331' was not present in the dictionary.
...We made no other changes and the products in question were both in the database and showed correctly under the "PRODUCTS" admin area.
We changed our DW version to 10.7.4 and now it's working again.
Best regards,
-Jóhannes