I have loads of drawings to release which were created by my predesessors.
The problem is that when I open them in ProE some of the drawing frame is not visible.
If I open a new drawing the detail is present but once I save it and reopen it the detail is missing again.
Is there a setting in ProE which could cause this?
I've seen this happen when the disappearing items are images imported into the drawing. They become invisible, but are still selectable.
But, it's not likely that the disappering items in your drawing are images, are they? Whatever the items are check the drawing tree and see if they're hidden for some reason.
If I open a new drawing the detail is present but once I save it and reopen it the detail is missing again
One of the cause might be conflict in formats
Generally this happens when you have different formats with same name
1.You can check this by searching the formats with the name in working directory
2.Check that the format you are using is in format directory as per pro_format_dir path in config.pro
I had the same issue. Then I just pulled the .frm file from the default location to the working directory, where the .drw file is located. Close the .drw and reopen it. It works!