Had this error many times..usually indeed Blueprint is fairly quick to resolve..if it still happens after an hour or two, i'd have the casino go after it - that said, i suppose you have already contacted Live Chat, if not, you could do so, just to speed things up, as if there's more than just one report they may speed up the process by contacting the provider.
In mty case this mostly happened in the wee hours where no support was live, and the people managing the Blueprint servers were also sleepy or less attentive
Hope you're not on a bonus, as that could complicate things - but if it's clean cash, feel free to do w/e, cash -out if you can, and then hopefully come back to an 'extra cash-out' later
So far, at least in the case of Blueprint, i was always able to restore the game-round and play out the bonus, as happened to you in the meantime
Do you play Temple of treasure any?
And if you do, what bonus do you go for?
I used to always take mystery choice, but have never managed the 15 spins+10k megaways.
Now i go for the 5spins with 10k megaways. I figure if the bonus wants to pay me it will retrigger.
I did play it a bit on release, but i prefer other Blueprints, and in part the Bonus mechanism on this is exactly the reason I do believe it gives you what it wants anyway, but i did try to get the mystery 'top picks' most of the times. And always ended up feeling like a dick when i got the worst combo D
The one time i managed the elusive extra scatters (only one extra) i took the max spins option. I believe it was 19 spins. Iirc, best result was indeed on a 5 spins top megaways mystery result.
If you like Blueprints, try Lightning Strike for a bit, and collect all the decent wins that offer the gamble (like 15x or more) but gamble the minimum wins, and go for max 25 spins on the first pie-try.
I had some amazing results on that. Quite underrated i.m.o. as i rarely see any screenies or streams/clips of it!