If Filmora constantly crashed after you clicked the Import button, this issue is likely caused by the 3ds Max of Dell workstations. Here are two possible solutions for you to solve this issue.
1. You can refer to the link to upgrade Dell Backup and Recovery (DBaR) of Windows 10 to solve this issue.
2. You can also uninstall 3ds Max of your Dell computer to solve the problem. But this will conflict with the Dell Backup and Recovery system in Windows. That means it will influence your file backup and recovery mechanism. If you want to try it, you can follow the steps in the link to uninstall.