Have you a bug in your grid definition with overlapping sections, have you position:absolute on one of the elements involved, or other position properties like fixed or sticky, …
I could go on but without seeing your code it might become a very long and tedious process to find out what’s wrong and I don’t think anyone would be willing to go through that.
https://codepen.io is great for sharing code. You can log in with your github account.
Hello @jsdisco , I really appreciate your replay. In the mean time I fixed the problem but I will be very happy if I will get different solution or approach of the problem.