The issue that caused critical hits to deal less damage than normal hits was the result of recent changes to the Resilient item perk. As part of this change, the perk included a cap to prevent it from reducing critical damage lower than the normal attack damage. However, we found that when combined with the 150 constitution attribute bonus, which also reduces critical hit damage, it was able to ignore this cap.
We have corrected this behavior and the fix will be available in a future update. Thank you for your report!