Why 80tta is disabled to edit in ITR1 in Incometax Online Efiling tax returns for AY 22-23

Hi, While claiming exemption under 80 TTB is allowed to be edited, 80 TTA is not allowed to be edited.

My bank included the savings bank interest in  the given statement to me.

It is also correctly captured in prefilled entries, but I could not claim exemption under 80 TTA.

why