Assign: Column 'Incident Summary' does not belong to table DataTable

hi all, i got this error after i add another sequence above it which named incident location. i already check the spelling and empty space but it all checks out. can someone help me? here i include screenshot of the workflow.
Incident Summary

also to add the code for value to save in assign activities
System.Text.RegularExpressions.Regex.Match(in_TransactionItem(“Incident Summary”).ToString.ToLower.Trim,“(.*?).”).ToString.Trim

HI,

Is In_Trnsactionitem is DataRow type?
If so, can you try to set Breakpoint at the Assign activity and debug run. Workflow will stop there then check column name in Immediate panel, as the following.

image

Regards,

yeah i check, it looks like it doesnt detect the incident summary columns from excel but it makes me weird cause before i add the incident location sequence and in the vba it works perfectly fine