Hello Peter van der Elst,
I tested saving an IFCzip file from ARCHICAD, and then opening it in Solibri, and the TIME_STAMP value shows the correct time and date for me.
Is that the value you are looking at too? Could you send me a screenshot of the value that seems wrong to you? (please check it in Solibri)
Also, You mention unpacking the IFCzip file. I can just open IFCzip as I would do with regular IFC files. Why do you unzip it? What tool are you using to unzip it? (maybe that conversion sets the wrong date?)
Also, does this happen with other files as well? If it only happens to this file, and (as you say) it happens on multiple computers, then the file may be faulty. Could you send it over to me in a Private Message, so that we can take a look into it? (try to reproduce it ourselves)
Daniel Alexander Kovacs
Professional Services Consultant
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