Feature Set input keep disappearing arcGIS pro model

[Hilda_Onuoha]

I am using a Feature Set as a selecting feature input for a select by layer tool in modelbuilder. every time I changed something else or validate the input disappears and the feature set makes the entire model invalid. I prefer using feature layers for this purpose but my instructor insists on feature sets. (ArcGIS Pro 2.8). Why is that happening and what should d I do?

[JayantaPoddar]

Looking to configure interactive feature input for a custom model tool?

Have you checked the steps in Configure interactive input using feature sets - Model Tool

[Hilda_Onuoha]

I have done what is in the steps. But it makes the entire model invalid.