It's known as the Valley of Death syndrome. [♪][♫][ꜘ]
Especially common in the DoD where they're good at funding enormous numbers of SBIRs/STTRs, yet they never go anywhere, because all large money contracts are guaranteed to be vacuumed up by Lockheed / Raytheon / Northrup Grumman / Boeing / General Dynamics / Teledyne Brown / Honeywell / ect...
And in most cases (in my opinion, not legally binding), they purposely, slowly build cripple-ware with planned obsolescence that results in equipment that's vestigial before it launches and immediately needs 'upgrade' contracts.