Vaadin 14 Grid, disappearing of content rows


I encounter 2 scenarios which make this bug.

one of them i was able to fix using this trick: UI.getCurrent().beforeClientResponse(getGrid(), ctx → repaint());

1st scenario, after grid is load, i open a popup that display content, from popup i have next\previous to set selected of other record. after press, records are not on the dom.

this scenario solved by the above workaround.

2nd scenario, after grid is load, i change visibility of the columns, after that i add a new row. same issue, nothing in dom. f5 on browser get them on screen.

Anyone have an idea? this reminds bugs that was on Vaadin7…