Single Select List fields width become narrow after ScriptRunner is installed

Problem Description

The problem faced is that when ScriptRunner is installed in to the Service Desk the Single Select List display appears to narrow and trim the list options

Before ScriptRunner Installation

Before ScriptRunner plugin is added the Single Select List option on the Service Desk displays correctly as shown below:-

After ScriptRunner Installation

After the ScriptRunner plugin is added, it appears to shrink the Single Select List as shown below:-