# Software Stability
**URL:** https://discourse.shapr3d.com/t/software-stability/29432
**Category:** Modeling Questions
**Created:** [December 20, 2023, 6:19am UTC](https://discourse.shapr3d.com/t/software-stability/29432 "2023-12-20T06:19:27Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Jwardlow](https://discourse.shapr3d.com/u/Jwardlow)
#### Post date: [December 20, 2023, 6:19am UTC](https://discourse.shapr3d.com/t/software-stability/29432/1 "2023-12-20T06:19:27Z")
Hi All,
I am really struggling with an imported model. I am trying to bring a collection of .Step files together in order to be able to export the collective model as a single .step file for a customer.
However, for some reason some of the imported Step files, when I click on them to select the model, the software is crashing to desktop.
Is there a limit on the file size of an imported model, or is there a known bug with the latest release of the software. I had been importing these step files previously and never experienced this CTD.
Thanks in advance.
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### Author:  [@H\_Daniel](https://discourse.shapr3d.com/u/H_Daniel)
#### Post date: [December 20, 2023, 8:09am UTC](https://discourse.shapr3d.com/t/software-stability/29432/2 "2023-12-20T08:09:11Z")
Hi @Jwardlow,
Could you please open a [support ticket](https://support.shapr3d.com/hc/en-us/requests/new) and with the .step files attached to help us to investigate the issue?
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### Author:  [@Bob3DPO](https://discourse.shapr3d.com/u/Bob3DPO)
#### Post date: [December 20, 2023, 8:18am UTC](https://discourse.shapr3d.com/t/software-stability/29432/3 "2023-12-20T08:18:45Z")
Hi James,
After a recent OS upgrade, I had difficulties with imported .step files. For me, a machine reboot fixed the problem. This was on iPadOS, so may not be applicable to you.