It's very frustrating. After installing version 2.4 of ArcGIS Pro and the same version of Data Interoperability, this is what happens:
It seems this is not linked with the type of data I am converting if this matters (it happens both for IFC and CIVIL3D transformers).
Also, if I open an aprx where I have already used the Data Interoperability, it crashes if I try to use it, as it is a matter if the Quick Import is present in the History of the project.
The only thing I could do is opening a brand new ArcGIS Pro session and do my conversion once and do the same for each conversion I need.
Not ideal since it used to work and I need to convert a lot of files.
I also sent the reports of the crash.
Is it a recognized BUG?
The only thing I could find was Problem: Data Interoperability has incompatibilities when more than one Data Interoperability produc... but it only lists solutions for earlier versions.
ATTACHMENT
I attached the dump file as suggested by Drew Flater
Solved! Go to Solution.
Sometimes it's nice to see it's not a "machine/OS/personal settings-related" problem. Glad you found the cause and looking forward for the fix. Cheers.
A patch for ArcGIS Data Interoperability was released today September 12 2019, please install by in-app update. Apologies for the issues experienced.
Or download from My Esri if the updater has been disabled for your org...