Interest liability is only on sgst but same amount appear in cgst column also in 5.1 box of gstr3b

Sir

My interest liability for march20 is only on SGST, (as there is credit balance available in cgst ledger due to extra igst, so theres is no cgst liability). My liability to pay is only sgst, so interest should be only on sgst liability, but while filling interest payable box in table 5.1 in gstr3b - same interest amount appear in cgst column also when I type amount in sgst column.  How do I pay interest only on sgst liability?