Options don't save on exit and won't open last saved/edited/opened

Check version

• I'm running the latest version of Path of Building and I've verified this by checking the changelog

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• I've checked for duplicate issues by using the search function of the issue tracker

What is the expected behaviour/value?

Changes made and saved in Options, like using thousands separator, should save and be set next time POB is opened.

POB should default to last build opened/saved on open.

What is the actual behaviour/value?

Any changes made and saved in Options, like using thousands separator, will not save on exit. It resets every time I re-open POB.

Back in 3.14, POB would open to the last build I saved. It didn't do it in 3.15 and it's still not doing it now. It keeps defaulting to a build from 3.13 that I haven't opened/used since then. I thought this would be fixed in 3.15, so I didn't report it until now.

How to reproduce the issue

No response

Build code

Build POB should be opening to: https://pastebin.com/yWC03DPW (build I'm currently working with)

ALWAYS opens to https://pastebin.com/2WQALZtf since 3.15

Screenshots

No response

まず、終了時に Options の変更がどのように永続化されるか、またアプリケーションが起動時に開く Build をどのように選択するかを追跡します。報告された期待される Build と実際の Build を使って両方の失敗を再現し、その後、オプションの値が永続化され、最後に保存または開かれた Build が選択されることを確認します。