This problem has been addressed in this forum:
https://github.com/perl/perl5/issues/16828
If you scroll down to 25 Jun 2019 15:27:08 -0700 you'll find that Aaro Koskinen discovered that:
"This issue seems to be caused by wrong alignment causing unexpected behaviour. Running Configure with -Dd_u32align makes the build succeed."
It does work so there is a current workaround.
According to the last post on Tue, 08 Oct 2019 this fix should be incorporated into the perl 5.32 release.