[SOLVED] Error in altitude/climbing on running activities

If you did already re-analyze, try reprocess. The ‘climbing’ summary field should just copy whatever is written to the FIT field by your device.
If you did not re-analyze/reprocess, the climbing field has been calculated with the Intervals algorithm and can have small differences due to rounding errors and differences in the algorithm.
Complete explanation is here:

I’ll mark the topic as solved.