Suffered from a few very large non-starts in attempting to port it all to browser-agnostic JS and other frameworks by offshored teams. Couldn't capture the same

Suffered from a few very large non-starts in attempting to port it all to browser-agnostic JS and other frameworks by offshored teams. Couldn't capture the same UX and layouts; too much proprietary business logic in the background that less and less people have knowledge of. Unconvincing demos, bad sales, sunk cost. Good guess.