I’m not sure I understand the second bug - could you describe in detail what happened?
If you enact the reformist plan and also have the finance ministry, you will lose the ministry and can never bargain it back in a Weimar Coalition. Idk if it’s because I made the finance minister of Hindenburg resign though
After you get the Schact against Hilferding event, you should still be able to get the Finance Ministry back through Shuffle Cabinet…