Of course. That happens. Luckily, we have countries like China with less red tape to use to measure. They've been building a lot of nuclear and solar. Their end-to-end solar looks like around $750M per GW (possibly including storage? Not sure. About $2.2B for a 3.3GW plant). Looks like they're spending about $5B per GW of nuclear.
Sorry I don't have the solar reference anymore. I was building a math equation for another comment and realized they weren't talking price, so scrapped it without thinking.
Since those numbers seem to match US figures, I think people in the Western World forget that a lot of bid cost increases or "escalations" are due to the fact that companies try to low-bid to win the contract, knowing every little inconvenience will require a cost increase. It evens out more than people want to admit.