Created a test table - 1
When opening for the first time - everything is ok - Then mouse scroll and 2 first row disappeared.
I click on table 2 and then table 1again - everything is ok - Then mouse scroll and 2 first row disappeared.
It shows up in monitor with resolution 2560x1440. On full HD - all rows visible after mouse scroll.
Sorry for english - photo example attached.
Thanks for help!