Backspace, Delete, and/or Return Key Stops Working in Oracle SQL Developer

So, I fire up SQL Developer to run some queries against a QC server and for some reason, I am no longer able to use the backspace, delete, or return keys to edit .sql files opened in the program.

I tried opening a new .sql file, and restarting SQL Developer.  I then tried restarting Windows.  None of those worked.

After a bit of searching I found a forum posting that indicated by going to Tools/Preferences/Accelerators and clicking the “Load Preset…” button in the bottom right of the dialog box would fix the problem.  My guess is that some key mapping preference file had gotten corrupted some how and that by replacing it with a default that it fixes the problem.

After doing so, I was back in business.

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