Issue
This issue is getting after Xcode 12 update.
The issue is caused by the expression which needed to be break down into sub-expressions
Using release version : 4.0.1

Buid settings:

Proposed solution:
Replacing expression:
return c * $0 * $0 * $0 * $0 * $0 + b
with
return c * ($0 * $0 * $0 * $0 * $0) + b
Issue
This issue is getting after Xcode 12 update.
The issue is caused by the expression which needed to be break down into sub-expressions
Using release version : 4.0.1
Buid settings:

Proposed solution:
Replacing expression:
return c * $0 * $0 * $0 * $0 * $0 + bwith
return c * ($0 * $0 * $0 * $0 * $0) + b