I have never experienced, however, what you are detailing, before PolyBridge
One more thing I forgot to add is the delay of confirmed permission transactions. Some dapps will need a minute or two before they acknowledge that you actually granted access to the bridge. It happens often that I confirm the same transaction twice because I didn't wait for it to load so maybe that was the case.
But hey, as long as it works as intended I'm not complaining too much given that it is the only "cheap" option right now.
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