Anybody else in the USA struggling to get their lisdexamfetamine prescription filled?

It's been like this for the past few weeks. I've tried 6 different pharmacies, 3 of which were large chains, and one of which was an online ordering service.

I read that there have been supply chain issues for the past few years, but for every supplier of every mom-and-pop and big-name company to be put on back-order at once has never happened to me before.

Does anyone know what's going on?