Lpub3d crashes when trying to open mpd - solved

[kbalage]

I'm pretty new here so apologies if I'm asking something known - I've tried to search the forums for an answer but no luck so far.

I'm building a C model of the 42029 pickup using Ldcad 1.5 and I was planning to create instructions with Lpub3D. I made the mistake of not testing my .mpd during the building process with Lpub3D, so I've realized towards the end that the file cannot be opened, Lpub3D crashes when I try to open the file (Lpub3d***.exe has stopped working). As I did not have any other troubleshooting ideas I started to remove submodels and steps in my mpd going backwards to see if I can find the problematic part.
As it turned out the problem is not that simple - different versions of Lpub3D on different operating systems can open different versions of my file.

E.g. version with 8 submodels - opens with Win10/Lpub3d 2.0.14 / opens with Win7/Lpub3d 2.0.14 / opens with Win10/Lpub3d 2.0.14
version with 11 submodels - crashes with Win10/Lpub3d 2.0.14 / opens with Win7/Lpub3d 2.0.14 / opens with Win10/Lpub3d 1.3.4
version with 21 submodels - crashes with all versions (nearly complete model has 60 submodels)

Due to this inconsistency I could not find a single part or submodel causing the issue - above a certain complexity all versions of Lpub3D crashes.

I'm sure Lpub3d supposed to handle a model with ~1000 pieces, so I don't know at this point how to change my file to make it work. Any advise or suggestion would be greatly appreciated.

Edited October 28, 2016 by kbalage

[legolijntje]

That's weird. Could you maybe share the model so I can take a look at it (maybe via a PM if you don't want it public)?

[kbalage]

Thank you for the offer, I have no problem sharing the files:
version with 8 submodels
version with 11 submodels
version with 21 submodels

[kbalage]

On 2016. 10. 25. at 3:31 PM, legolijntje said:

That's weird. Could you maybe share the model so I can take a look at it (maybe via a PM if you don't want it public)?

Meanwhile I posted the question on the Ldraw forum as well, and as Philo found out the issue was with the headers - Lpub3d did not handle well the empty author field. Once the headers were replaced the files can be opened flawlessly :)

[Philo]

Well, technically the problem was not specifically the author field, but absence of any field. Adding a name line instead of author line works too.