Blizzard have found fixes for the Battle Pass and Season Journey issues. The hotfix for these will be rolled out over the next hour. However, players will not be getting credit for Season Journey challenges completed before the fix went live.
Previously, players were experiencing issues with receiving rewards from the Season of Blood Battle Pass and Seasonal Journey. We have rolled out a fix for these issues that will begin to take effect over the next hour or so. Do note that Season Journey progress acquired prior to the release of this fix will not apply retroactively. You will lose no progress made on your Battle Pass, and now can claim all earned rewards from your Tiers. You should also now see progress incrementing correctly on Season Journey tasks.
Thank you for your feedback and patience.