I went through the steps to start the trial with Vuforia Studio and subsequently Creo Illustrate following this guide - https://s3.amazonaws.com/studio.thingworx.com/documents/StudioGettingStarted_Trial_en.pdf - everything worked perfectly until I got to trying to launch Creo Illustrate.
I put in the license server found in the suggested directory and when I pressed "Start" to continue, the startup window said "Invalid Host ID"
I'm confused as to why this happened because I followed the steps exactly and downloaded the .dat file from the email and tried both extensions, the one from the email and the one that was there when downloading Creo Illustrate.
It is also annoying because my coworker went through the same process and was able to complete the process without any issue.
Hopefully my screenshots and links are useful and can help me get Illustrate running so the trial I'm on doesn't expire before I get a good sense of the power of these tools!
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By the way, all possible root causes are described in this article about this issue :