If two files are opened only first is displayed in wintabs

[astier]

If I open two files with nvim only the first one is shown in wintabs. After executing :bnext the second file is also shown in wintabs.

I would expect that both files would be displayed from the beginning.

I use neovim 0.4.2

[astier]

Both are also shown after executing :WintabsAllBuffers. Maybe I don't understand how wintabs is supposed to work properly. Why does wintabs behave this way? Whats the deal with :WintabsAllBuffers?

[astier]

I solved it by add the following line to my vimrc

au bufenter * WintabsAllBuffers

but I am still wondering why this doesn't work out of the box.

[astier]

I think I got the idea.