1. In the Parameters/General Reinforced Concrete Settings dialog, check the "Place Bottom Remaining Length" value (100 cm is the default value and is generally appropriate.) That value may have changed. 2. Similarly, in the same dialog " Check if the condition "minimum pile lower remaining ln/2" is checked. If it is, your beams may not meet this condition. 3. Check if "rebar diameter for pillar" is selected in the reinforcement selection. If your problem is not resolved, you can add your project to the message...