RC license activation keeps popping up in every 15 mins

Since RealityCapture 1.4 there are no licenses needed to run it.
Starting with the release of RealityCapture 1.4 and Unreal Engine 5.4, we’re introducing a new Unreal Subscription, which includes Unreal Engine, RealityCapture, and Twinmotion for $1,850 USD per seat per year. This offering is for creators of non-games products (such as films and television shows, architectural visualizations, and graphics for broadcasts and live events), who make more than $1 million USD in annual revenue. You can find out more details about Unreal Subscription and who it’s for in this blog.

If you don’t need to use Unreal Engine or Twinmotion, or if you fall under the Unreal Engine royalty model because you use it to create games or applications that incorporate Unreal Engine code at runtime and are licensed to third parties, you can still buy RealityCapture as a standalone subscription seat. Individual RealityCapture seats will be priced at $1,250 USD per seat per year, which includes all updates released during the subscription period.

These prices will only apply to companies generating over $1 million USD in annual gross revenue. With these updates, RealityCapture will become free if your company earns under $1 million USD in yearly revenue. RealityCapture will also be free to use for students, educators, and hobbyists.

If you’re currently using RealityCapture 1.3.2 or any other prior versions, pricing and licensing changes will not apply to you until you decide to update to a version later than 1.4. If you have perpetual licenses of RealityCapture, you can continue to use these, regardless of your annual revenue. In addition, when we release 1.4, you will also be granted twelve months of updates, after which, purchasing a subscription will be required to get further new releases (if you’re not eligible for the free version).

You can find the newest version there: My - Sign in - Capturing Reality in the Downloads section (as previous ENT user).