I know it's bad, but it's awkward, so, I always input over 5000 lines, which is MAX. Then, I usually see the message "ERROR: Over 5000 lines". Howerver, it sometimes not displayed. Where does this difference come from?

Generally, our online tools can be used not only by our visitors, but also by our customers and ourselves. Visitors and customers use the same tools. We also use the same tool because we click the link on the catalog and use it.

If we or our customers handle documents that exceed 5000 lines, we temporarily remove the MAX error filter.

If the visitor came to use tools by chance "when we removed the filter", the error due to MAX isn't displayed. When we turn on the filter again, you see the error due to MAX again.