Hey, this is a known bug. Bedrock intercepts requests to all models when its credentials are set, even if a non-Bedrock model is selected. There was an attempt to fix it in 2.5, but the regression came back.
The same bug is discussed here: Bedrock enabled reroutes Gemini API requests to Bedrock (“Selected model is not supported by bedrock”) — cannot use Gemini + Bedrock simultaneously
The only working workaround right now is to disable Bedrock in Settings > Models > API Keys > AWS Bedrock before using Gemini. It’s annoying, but there aren’t any other options yet.
The team is aware. There’s no timeline for a fix yet, but your report helps with prioritization, especially since the bug has carried across multiple versions.