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Those question marks mean that Inventor cannot find your files. Either they were deleted (doubtful?), or whatever location they are saved in has not been added to your search path.
Are you working on a network, or using Vault?
Chris Benner
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It could be you are using a different Project File and the unresolved files are not within the scope of your current project.
As also stated, these files could have been deleted, stored on a network drive or other location that is currently unavailable to your machine and Inventor.
Inventor 2020, In-Cad, Simulation Mechanical
Just insert the picture rather than attaching it as a file
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Delta Tau Chi ΔΤΧ
Can you access all your network drives and folders where your Inventor files are stored. It be as simple as a reboot of your machine, possible a reboot of your server as well. It could even be a network cable unplugged or a faulty NIC card.
Inventor 2020, In-Cad, Simulation Mechanical
Just insert the picture rather than attaching it as a file
Did you find this reply helpful ? If so please use the Accept as Solution or Kudos button below.
Delta Tau Chi ΔΤΧ
First go to Get Started > Projects. Make sure your project is set to where you have the files. Sometimes Inventor will default to default. If the files are not in the project folder, or in a different project than set, move the files or change the project. This should make those files available again. But anytime this occurrs, this is the first thing that should be checked. If it is not this, then we will go to the next possible cause. Was it only one or two parts that were unresolved, I would say it was a different cause, but being they all are, this is the most likely cause in this case.
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