sqlite3 still works with LR 8.3.1?

[johnrellis]

Continuation of discussion started here: Using external SQLite3 tools against a catalog. | Photoshop Family Customer Community

"sqlite3" continues to work for me on LR 8.3.1 / Mac OS 10.14.5:

and on Windows 10:

Not sure what's going on in your situation.

LR puts an operating-system read lock on the .lrcat file so only one program can open it at a time, but you're getting a different error message ("database disk image is malformed").