There can be multitude number of reasons why a model does not open in AutoPIPE. Select link that closely resembles information from AutoPIPE Log file, Event Viewer, etc..
Note: see link here for general options available to fix the model
Appears in AutoPIPE when opening a model
AutoPIPE Log file
Open AutoPIPE's Log file and review the last lines of the file:
Event Viewer messages
Open computer's Event Viewer, select Windows Log> Application> find recent Error event, select it> and review the General details about it:
- Faulting application name: autopipe.exe
- Faulting module name: ucrtbase.dll
- Exception code: 0xc0000409