Auto-complete List vanishes as I press enter in vscode - visual-studio-code

Until yesterday, autocomplete was working fine. Now when I press enter on my desired option from my auto-complete list, the list disappears and my cursor moves to the next line.

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select popup variant by enter instead of mouse click

When I am pressing ctrl + space vscode shows me variants (first image). Then I am pressing enter and vscode move my code below (second image) instead of selecting a popup variant.
I am pressing enter and variant should be selected.

Postgres autocomplete not working in version 10

Whenever i press up/down arrows, the command history is not getting displayed and whenever i press tab, autocomplete is not happening.

VSC intellisense deletes suggested word

Most of the time, pressing tab or enter to autocomplete a suggestion works fine. However, for some select words, a wrench appears as the icon for the suggestion that I want, which deletes the suggested word upon pressing tab or enter.
Is this WAD? How can I change my settings so that this doesn't happen?
Suggested word "integer"

When using emacs org mode. Pressing backspace in a head jumps to the top of the page

Lets assume that I have something like the following
* Project Outline
** Foobat
And the cursor is on the t of foobat I want to delete the t by pressing backspace. When I press backspace, the cursor will jump to the first astrix at the top of the page. This is the astrix right before Project Outline. Why is this happening?

Editor's auto-complete doesn't show autocomplete popup on Backspace

Editor's auto-complete loses context and doesn't show the autocomplete popup when we start using backspace after selecting the value from the popup list. Is there any option by which we can get back the popup list programmatically while the user is hitting the backspace? Apparently, the user can use Ctrl + Space to get back the context, similarly, I need it to work programmatically.