This issue has occurred and been fixed before in 2023. I can’t find the release note for the last instance, but think it was June.
Mid-ride, the gearing will shift into 2x11 (the max for my profile) and then be locked for a few seconds before I am able to shift gear again. Other instances have required a power cycle of the bike to get control of the gears back. On one single case, the gear locked to 2x11, then counted down a cog every second to 2 x 1.
In the prior release note there was an issue with the Draft power-up locking Bike steering into the left channel and impacting shifting. I have observed this behavior suspiciously close to activating power-ups. This has happened 2-5 times a ride on the new routes, aligned with how many power-ups were granted/used.
My assumption is that the original bug has been re-introduced through a development branch with the new roads/graphics.