I believe it's the summary that is the issue. Multiple customers' details are being rolled together into common summaries. I'll admit to an incomplete understanding of how SR is supposed to work, but I thought that a field marked as "summarize by" would receive subtotals of the amount/qty fields? I don't understand why the summary would only show the first customer or category, if that is the field you're looking to "summarize by"?

When you drill into the details, the heading seems to indicate that you are looking at a single customer, while the details include multiple. Here's a screenshot from sample data:



Thanks,