Hello, Please review this post in regards to Visual Studio 2019: https://www.prepar3d.com/forum/viewtopic.php?f=6310&t=133238&p=196598#p196598 For 3DS Max, just to clarify, did you follow the documentation for creating the model with the Prepar3D Modeling Format ? For reference, the document...

Hello salimpilot,


You'll have to contact licensing@prepar3d.com via email to get your activations reset.

Please include your license ID in the email. It may take 1-2 business days for your request to be processed.

Regards,
Brady

Hello sw2719,

To have us assist you further, could you please review this topic and let us know the results from following the troubleshooting steps?

http://www.prepar3d.com/forum/viewtopic ... 2&t=123246

Regards,
Brady

Hello NAGES,

When you installed the latest version of v4.5, did you first uninstall the previous version?

Regards,
Brady

Hello JJJ, To have us assist you further, could you please review this topic and let us know the results from following the troubleshooting steps? http://www.prepar3d.com/forum/viewtopic.php?f=6312&t=123246 If the issue is determined to be caused by an add-on, you will likely want to reach out t...

Hello sso,

Does the following thread help?
https://prepar3d.com/forum/viewtopic.ph ... it=flicker

Regards,
Brady

Hello nohey1, Have you tried checking the md5 checksums to ensure they match those listed on our downloads page? You can review this post for more detailed information on downloading/checking the checksums: www.prepar3d.com/forum/viewtopic.php?f=6313&t=126465 Make sure you are running the instal...

Hello machtoo, To have us assist you further, could you please review this topic and let us know the results from following the troubleshooting steps? http://www.prepar3d.com/forum/viewtopic.php?f=6312&t=123246 If the issue is determined to be caused by an add-on, you will likely want to reach o...

Hello trackbar, To have us assist you further, could you please review this topic and let us know the results from following the troubleshooting steps? http://www.prepar3d.com/forum/viewtopic.php?f=6312&t=123246 If the issue is determined to be caused by an add-on, you will likely want to reach ...

Hello souvigny, To have us assist you further, could you please review this topic and let us know the results from following the troubleshooting steps? http://www.prepar3d.com/forum/viewtopic.php?f=6312&t=123246 If the issue is determined to be caused by an add-on, you will likely want to reach ...

Hello AmirabbasDr,

Be sure that you completed all of step 5 in the general debugging steps.

Do you have other programs running while Prepar3D is running?

Have you opened task manager to see if something else is eating a significant amount of CPU cycles?

Regards,
Brady

Hello AmirabbasDr,

Was v4 working on your system normally at one point?

Did you change something with your setup from when it was working normally to when it started having issues?

Regards,
Brady

Hello AmirabbasDr, To have us assist you further, could you please review this topic and let us know the results from following the troubleshooting steps? Also, can you provide the details of your system? http://www.prepar3d.com/forum/viewtopic.php?f=6312&t=123246 If the issue is determined to b...

Hello FJeijsman, Have you tried checking the md5 checksums to ensure they match those listed on our downloads page? You can review this post for more detailed information on downloading/checking the checksums: www.prepar3d.com/forum/viewtopic.php?f=6313&t=126465 Make sure you are running the ins...

Hello Bob, Have you tried checking the md5 checksums to ensure they match those listed on our downloads page? You can review this post for more detailed information on downloading/checking the checksums: www.prepar3d.com/forum/viewtopic.php?f=6313&t=126465 Make sure you are running the installer...