Hello @Doulos12 and welcome to the Community. Yes, this is a longstanding issue that needs to be fixed. Fitbit is aware of the issue. In this case, I think you should just delete that exercise record. I also think you should change an exercise setting to ignore automatic biking. Tap on your profile picture/gear icon in the upper right of your app > Activity & Wellness > Exercise > Outdoor Bike > toggle it off. Just in case, turn off Swimming, too. The accelerometer sees what it sees and will try to categorize it.
Laurie | Maryland
Sense 2, Luxe, Aria 2 | iOS | Mac OS
Take a look at the Fitbit help site for further assistance and information.
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