Select "Use seismic combinations for slab design".
The Complete Message:
Select "Use seismic combinations for slab design" in analysis settings.
The option is available in Analysis settings \ General Settings tab. Highlight the option, click the OK button, and then repeat the analysis.
![image-20240322-095932.png](../__attachments/1100349619/image-20240322-095932.png?inst-v=f19fc7cc-758e-4997-b5f0-444a3286777e)