Improve UX of failed attachment
When attaching a receipt to an expense on the Mac app, the file picker opens and lets you select a file, but after clicking Open the picker closes and nothing attaches — the expense still shows MISSING. The window briefly glitches, then returns to the same screen with no error shown.
This came from a real user report (Oct 2, 2026). Troubleshooting shared with the user: HSA Monster accepts PDF, JPEG, PNG, HEIC, GIF, and WebP files under 5 MB. If a file won't attach, check the file's Kind and Size in Finder (select file, press ⌘I), look for red error text at the very bottom of the Edit Expense window right after the failure, and try re-saving the file as PDF or JPEG via Preview → File → Export.
Next step: instead of failing silently, the app should surface the actual error (unsupported type, too large, etc.) in the UI when an attachment doesn't go through.
Completed
Fixed in HSA Monster 1.1.3 — if a receipt can't be attached, the app now shows a clear message explaining why. Large photos also attach instead of being refused.