Created attachment 201167 [details] Sparkline is missing for constant When using sparklines in Calc, if all the values in the data range are the same (e.g., 1, 1, 1, 1), the sparkline is not rendered at all. This can be confusing for users, as it appears as though the sparkline is broken or missing. Steps to Reproduce 1. In Calc, enter values 1, 1, 1, 1 in cells A1:D1. 2. Use the Insert ▸ Sparkline feature to insert a line sparkline in cell E1. Observe that the sparkline is not visible. Expected Result The sparkline should display a flat horizontal line, indicating that the values are constant. Actual Result No sparkline is rendered at all — the cell appears blank.
Reproducible in: Version: 25.8.0.0.alpha0+ (X86_64) / LibreOffice Community Build ID: 899d87a844c2aa2990df4a9268008960d8489379 CPU threads: 4; OS: Linux 6.8; UI render: default; VCL: gtk3 Locale: en-GB (en_GB.UTF-8); UI: en-US Calc: threaded
On pc Debian x86-64 with master sources updated today, I could reproduce this. I reproduce this too with LO Debian package 25.2.3.2