lnav blinks if you try to go over the current view or press an unrecognized key

[vanyauhalin]

lnav version
v0.12.3

Describe the bug
lnav blinks if you try to go over the current view or press an unrecognized key. It looks like a bug, but if it is a feature, I would like to know how to disable it. Thank you.

To Reproduce
See attachment.

issue.mp4