When selling a position the page suddenly starts going up and down

[MicaelaPesado]

Description:
When selling a position the page suddenly starts going up and down, after accepting the notification the "order position section" shows the image intermittent.

Pre-conditions:
Making a conditional prediction before the sell.

Steps to reproduce:

1. Click on the sell button placed next to a previous position
2. Accept the metamask notification
3. Observe.

Enviorment:
Browser: Google Chrome
Wallet: Metamask
Computer: Dell Vostro 5100 14 inches

Capture:
https://drive.google.com/open?id=1SoBa9UBbZCtyN6M5y1tZ0sI1fYtCu1a3