Hi, @aleksandra_budnik.
Apologies for taking so long to respond. I tried setting heights explicitly and saw the same misalignment. Here is an exaggerated example with the height set to 100px. This is an exaggeration but the rows become aligned by a whole row at the end of the 100 record table.
Without this explicit height setting, the row header and cells do align until a cell contains text that causes the cell to expand vertically. It’s the multi-line cells that seem to be causing the misalignment for me. I’d prefer to not have to set a defined height as I do not know a priori what a good value is here.
Finally, I noticed the class “observations” on the anchor tag in the screenshot. I did try removing that class but still see the misalignment.