Hello finacoles2 thank you for also posting about this issue you have experienced.
For these crashes, as Ubi-Orion asked could you all please try every step in this article here to help resolve these crashes, as this support article contains the most common fixes for crashing in our games -
https://support.ubisoft.com/en-gb/Article/000061047
If you are still experiencing these crashes after following all the steps in this article, we will need to gather everyone's system files to do a deeper investigation and to see if we notice any patterns such as windows versions, driver versions etc
Please visit our website here -
https://support.ubisoft.com/en-GB/Cases/New
Next, please upload both of these files so we can advise further of any troubleshooting, this will also allow us to send these files to our QA team too -
DXDIAG -
https://ubi.li/msrxL
MSINFO -
https://ubi.li/lmiCE