Houdini 19.5 Production Build updated to 19.5.640

Hidey ho! The Houdini 19.5 Production Build has been updated to 19.5.640.

Here's a link to the journal for all the changes that went in since the last production build:
https://www.sidefx.com/changelog/?journal=19.5&categories=&body=&version=19.5&build_0=605&build_1=640&show_versions=on&show_compatibility=on&items_per_page=