I installed Lubuntu 18.10 which comes with LibreOffice and I have experienced these two issues:
It cannot open .dbf files.
Pressing Ctrl+P doesn’t show an accurate print preview. For instance if I set the ‘Scaling factor’ to 120% and then proceed to print the selected cells, the preview does not show any changes in the output, except if I exceeded the margins.
I had no problem with a previous version of LibreOffice.
Thank you very much for your time.