After adding create trigger default field value doesn't populate for standard fields.

Summary:

Organization: Terex

Content (please ensure you mask any confidential information):

We have created one onCreate event for opportunity, activity, leads for our use case.

Before creating this action chain, the standard fields from for eg opportunity i.e Est. Close Date and Currency these fields were auto populating by default as those are standard fields.

But after creating this action chain those values don't auto populate

Is there any way that we can handle this scenario without affecting our action chain?

Version (include the version you are using, if applicable):

23D

Code Snippet (add any code snippets that support your topic, if applicable):