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Hello FarhanahN,
Thank you for your time, we highly appreciate your cooperation.
As this behavior applied only to one column, please make sure this is a correct column type.
Currently conditional formula in not supported on the further column types:
- Calculated columns
- Person or Group with multiple selections
- Choice with multiple selections
- Time calculations in Date and Time column
- Currency columns
- Location columns
- Managed Metadata columns
You can find column types for your list on List Settings page as on screenshot below.
If Remarks column is a supported column type, may I ask you to create a new text column and check if the same issue appear on it?
Regards,
Igor