How are long column headers or long content in a column visualized in the Issue Matrix panel?
The matrix table takes all the space of the left column in the issue view page (usually around 1000px wide in 1440p resolution) and tries not to show any horizontal scrollers.
When multiple columns (10 or more) are configured, they will be very narrow. The reason is that Issue Matrix will try to show them all in its panel without resorting to a horizontal scroller. This means that values like 100% for the column width in the Issue Matrix configuration will have no effect.
The column width value in the configuration serves as a minimum value for the width of the column (if possible). Suppose the configured value is too small, but the column's content is too large. In that case, Issue Matrix will expand the column to display the entire range of the field. Truncating or displaying the value over the next column is not the desired user experience.
The table header is also considered when expanding the column width. If you specify the column to be narrow (e.g., 10px), but the header contains words more extended than that value, the column will be expanded again to display the title correctly. You may try renaming a column to make it narrower.If a column needs more spaces according to the above rule, it may expand and occupy some of the space of the other columns. That means some columns will be narrowed (even if they have a bigger width value in the configuration) to display the other columns. Each column has a minimum width of about 16-20px (so that there is enough breathing space between columns), so setting smaller values in the configuration will have no effect.