ProMdlSave seems to have an issue with drawings.

[CHASEONHO]

Hello

Parts A.prt and drawing A.drw are available.
Parts and drawings are assumed to be checked out.

Component A's dimensions and shape have changed.
Open drawing A.

Use ProDrawingViewVisit to call the following function:
-ProDwgDraftRegenerate
-ProDrawingViewIdGet
-ProDwgViewRegenerate
-ProDrawingViewRegenerate

Then call ProMdlSave.

All called functions return PRO_TK_NO_ERROR.

The result is stored only in the associated part A.prt.
The drawing A.drw does not appear to have changed.

However, when you call ProMdlSave after you have done Update Draft on the Review tab in the Creo UI, the drawing also appears to have changed.

We are currently working on this issue by opening the PTC case.
If you have any of the community users who have experienced and resolved issues like me, please share them.

Thanks,

Warm Regards,

SH CHA

[CHASEONHO · Accepted solution]

It was an option problem in config.pro.
If you change the value of save_object to changed_and_specified and save it, the drawing will be saved correctly.