I want to use the plugin I paid for. I activate it. Activation is successful. I try to use the plugin (round corners), it says not activated. This is a loop, no matter how many times I do it.

I just want to round some corners. I hate all of this. I'll never buy a SketchUp plugin again.

Deleting this file made it work:
SCFLicenseSignature - DO NOT MODIFY OR DELETE.txt

How counterintuitive is that? Please, please make the DRM more bulletproof, so I don't need to delete some file I don't understand, and have it give error messages that are meaningful.

---------------------------
SketchUp
---------------------------
Error in the License Validation

Request to Sketchucation: ERROR_A0B
---------------------------
OK   
---------------------------

Why? ExtensionStore 4.3.1, the latest.

Why do you have such poor error messages? Write better code that explains what is wrong!

I hate your DRM. I want to use what I paid for! This isn't the first time I have problems. It needs to work smoothly or I won't want to use it again.

I bought roundcorner. I activated it and used it. Later I run SketchUp, roundcorner isn't activated. I activate again and use it. 5 minutes later, still running the same SketchUp instance, roundcorner isn't activated again. Now I activate it, it says it's activated, but when I click roundcorner to use it, it says not activated. It is stuck in this loop.

I am disappointed. I was willing to give my money for the roundcorner tool, but the DRM is broken and I can no longer use the tool I bought. Needless to say this does not encourage me to buy any more tools. I understand DRM is needed, but it must not get in the way of paid users and absolutely must not prevent people from using what they have paid for.

Hey guys! Registered just to say thanks for this plugin. SU is a PITA to use without it. Also, I forked the project on GitHub and contributed a PR to fix camera jumpiness and improve some things. PR is here:
https://github.com/AlanChatham/FPSNav-for-SketchUp/pull/2
Fork is here:
https://github.com/NathanSweet/FPSNav-for-SketchUp
You can download my fork here:
https://github.com/NathanSweet/FPSNav-for-SketchUp/archive/master.zip

Thanks again for the plugin!