[GH-ISSUE #245] fastf1.exceptions.DataNotLoadedError: The data you are trying to access has not been loaded yet. See Session.load #53

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opened 2026-05-07 00:18:16 +02:00 by BreizhHardware · 4 comments

Originally created by @Lewyyyyyyyy on GitHub (Mar 10, 2026).
Original GitHub issue: https://github.com/IAmTomShaw/f1-race-replay/issues/245

I tested again the sessions I tested a time ago and they just say failed to load session, can you look it up ♥.

Originally created by @Lewyyyyyyyy on GitHub (Mar 10, 2026). Original GitHub issue: https://github.com/IAmTomShaw/f1-race-replay/issues/245 I tested again the sessions I tested a time ago and they just say failed to load session, can you look it up ♥.
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@HEPNARL commented on GitHub (Mar 10, 2026):

can you be more specific, with the session, that's causing issues?

<!-- gh-comment-id:4034614203 --> @HEPNARL commented on GitHub (Mar 10, 2026): can you be more specific, with the session, that's causing issues?
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@111110100 commented on GitHub (Mar 16, 2026):

I'm also experiencing the same. MacOS M2 (Tahoe 26.3.1 (25D2128)), Python 3.14.3, trying to replay race 2026 Australian Grand Prix:

Image
<!-- gh-comment-id:4064700840 --> @111110100 commented on GitHub (Mar 16, 2026): I'm also experiencing the same. MacOS M2 (Tahoe 26.3.1 (25D2128)), Python 3.14.3, trying to replay race 2026 Australian Grand Prix: <img width="1075" height="660" alt="Image" src="https://github.com/user-attachments/assets/b0f22067-e1bd-48c8-a1aa-c415c950ffba" />
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@111110100 commented on GitHub (Mar 16, 2026):

Fro some reason, it only happens if I replay 2026 races.

<!-- gh-comment-id:4070750972 --> @111110100 commented on GitHub (Mar 16, 2026): Fro some reason, it only happens if I replay 2026 races.
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@111110100 commented on GitHub (Mar 23, 2026):

Upgrading my Python package fixed this for me:
fastf1 3.7.0 -> 3.8.1

<!-- gh-comment-id:4114359252 --> @111110100 commented on GitHub (Mar 23, 2026): Upgrading my Python package fixed this for me: fastf1 3.7.0 -> 3.8.1
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starred/f1-race-replay#53
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