What's with the bootstrap glitch?

Question

Bootstrap

We addressed the problem, the page is flashing with some artifacts
. The solution was even filmed.
Video
Who faced?

Answer 1

More like not a glitch with bootstrap, but a glitch with your site, you can't figure it out without a link. Well, solve it the same way as all other problems, from the beginning of the diagnostics, find out what exactly the problem is, for example, remove elements from the page and look for when it will work as it should.