Sprint tyre allocation not updated in the DLC
Since the C6 tyre was removed in 2026, any tracks that used them had to be updated to not include it anymore and use the C5-C3 range. This applies for the following tracks: Montreal, Imola, Monaco, and Baku.
However, if the weekend type is chosen to be a sprint weekend, the tyre allocation reverts back to the 2025 allocation of C6-C4 rather than the updated 2026 allocation of C5-C3. This can be most easily seen in career mode where the new Montreal sprint shows the allocation as C6-C4, even though the C6 shouldn't even exist.
Screenshots below show Grand Prix mode, C5-C3 tyres are correctly shown for Montreal, however if you choose the weekend structure to be Sprint and Race, when you load into the weekend the tyre allocation will update to be C6-C4 as shown in the Sprint Qualifying 1 session.