Perspective Component Table - Filter input lost focus while typing

On our project in perspective version 8.1.4, we have several tables with the “Filter” option enabled.

Sometimes when typing a value in the filter field, the focus is lost and the last characters typed do not appears.
This happens with a browser and with Perspective Workstation.

At first I suspected pooling in the table but this behavior is still present when I disable it.
The table is also refreshed by a message handler with the “page” scope which is only called by other views displayed in popups.

Do you have any ideas about the cause of this random loss of focus and how to prevent it?

I’m having the same issue in 8.1.6. It seems intermittent though. Anyone else having this issue?