Hidden Visual-Level Filter Not Showing in Filters Pane – Data Stuck on 2012

I am facing a strange issue in Power BI Desktop (not Service). I have a bowling stats report that was working perfectly until yesterday. Now, my table visual is only showing data from the year 2012, even though:

1. No year filter is applied in the Filters pane (it shows "Add data fields here")
2. My slicer for Year/Season is set to "All" and shows all available years
3. My measures and Field Parameter are correct and were working before

Screenshot attached showing:

- The visual shows "Year is 2012" under "Filters and slicers affecting this visual"
- But the Filters pane has nothing under "Filters on this visual"

What I have already tried:
- Cleared all slicers (clicked eraser on each)
- Checked all filter locations: visual, page, report
- Checked Bookmarks (none exist)
- Checked Drillthrough (no active drillthrough)
- Checked Sync slicers (none synced)
- Checked Visualizations pane fields – Year is not in Columns, Rows, Tooltips, or Filters
- Restarted Power BI Desktop
- Created a new page and copied the visual – same issue persists

Question:
Where is this hidden "Year is 2012" filter coming from, and how do I remove it? The filter is clearly affecting my visual but is not visible anywhere in the Filters pane or Visualizations pane.