For the gallery white screen issue, we have done a crap ton of testing. This build we did switch some of the systems up to hopefully fix it but I guess we need to go back to the drawing table.
Are all videos white screening for you, or only some?
Viewing post in In Heat: Rules of nature UPDATE comments
Are you using a windows 10n or a windows 8N issue? https://monsterboxgames.itch.io/in-heat/devlog/401020/quick-talk-white-screen-is... I provided a general fix here and a bit more explanation about the problem.