Yes, it seems the bitcoin network is overloaded, and many transactions are pending. some wallet exchangers also experience the same thing
I'm not sure if you mention waves like that. Is there evidence of Transaction delivery from the original wallet?
Correct. For the topic owner, waves platform never steal something from you, it's decentralized. This pending situation is because of bitcoin network's slownedd and the blockchain is extremeley busy these days.
My transactions are pending as well.