Hello, I'll keep this as brief as possible. I've had Game Maker 8.1 Standard since release with a legally bought License key. I believe it was a License upgrade from GM 8.0 to 8.1 (using an old service called Softwrap). Anyways, it worked normally under the Pro/Standard License for nearly 9 years now and recently it started asking me to revalidate my License. That wouldn't be too much of an issue, except every time I try entering my license into the prompt, it throws an error. Now I'm literally locked out of my paid copy of GM 8.1 which I want/need to use for some old projects that use old features of that version of Game Maker. This started happening on my old PC (Windows 7) where I had the copy working for 9 years. Now I also have a new PC (Windows 10) where I aim to transfer my work. But this issue keeps happening. Windows version doesn't matter. Here is what happens when I type my license into the prompt: https://imgur.com/2M0x2RK Back earlier when my License was working normally (GM 8.1 Standard active): https://imgur.com/Pi73zZq (NOTE: I have hidden my license in these pics for privacy reasons. If necessary, I can show my license to Staff.) When I entered another license key in there (one I had for GM for HTML5 - that evolved into GM Studio 1) it gave a different box about not being able to verify that license. So I assume I did everything correctly, but the licensing is just broken? If so, what happens now? How do I get my Game Maker 8.1 Pro/Standard back? Even though I paid for it years ago, I still own it. Any help is highly appreciated.