Why Tooltip in Bootstrap 4 will trigger once?

Hello, master 4 at the Bootstrap documentation:
v4-alpha.getbootstrap.com/getting-started/introduction
It says how to connect
v4-alpha.getbootstrap.com/components/tooltips
I did it. Everything is almost working.
Tooltip works only on first hover on the button, the subsequent hovers the button the Tooltip is not working.
What the problem might be?
July 8th 19 at 16:17
2 answers
July 8th 19 at 16:19
You should have the website wrote.
July 8th 19 at 16:21
Most likely a button element dynamically is rewritten and the tooltip is not reinitialized. Need code to watch

Find more questions by tags CSSBootstrapJavaScriptHTMLWeb Development