I hope a mod will edit the changelog for this new version as follows:
Remove the note about having to go back to a previous renpy version there. My
post above is the fix necessary to get old saves to load with the new renpy SDK.
For your missing media, grab a copy of the images from the previous chapter 1 release (Homeless-0.8) game folder and paste it on top of chapter 2's images folder in the game folder. There will be a couple of files that overlap so just overwrite. Note that if you do this while in the game, exit it and restart/reload. Renpy only scans content on startup and will still complain about missing images if you don't do this if the game is running.
Note I still get a few missing images at the start but I didn't catch the details other than the fact that they were 09xxxx ones.