[Subtitles] Subtitles not available when inputstream is set to Manual

*I'm submitting a ...*
- [x] bug report

## General infomration
When Inputstream is set up to manually choose stream then subtitles in netflix are unavailable.
When I set inputstream to automatic stream selection then subtitles are available.

### Prerequisites

* [x] Are you running the latest version?

### Description

[Description of the bug or feature]

### Steps to Reproduce

1. Set up inputstream to manual stream selection
2. Play movie
3. There are no subtitles.

**Expected behavior:**
Subtitles are available.