[CentOS] failing to install LibreOffice 6.3.0.4

> Since my posting, I've remembered that the last time I installed LO
> I had the same problem and my "solution" was to use rpm -ivh *.rpm
> instead of yum. that workaround works fine.

Perhaps having moved over to the dark-side (rpm) you will be stuck using 
that, until redeemed by CentOS 8 with dnf :-)

-- 
Cheers
Bill