Down arrow key doesn't work with bindkey -v

[resting]

The down arrow key doesn't work whenever I enable vim mode with bindkey -v
It works if it's not enabled.
Is there a workaround with vim mode?
Am not able to enter the menu selection currently.

Tried adding the following to .profile but it didn't change anything:

bindkey -M vicmd "k" up-line-or-beginning-search
bindkey -M vicmd "j" down-line-or-beginning-search

OS: macOS

[marlonrichert]

As mentioned in the Readme, Autocomplete adds these keybindings only to the main keymap. So, if you want them to end up in viins, run bindkey -v before you source Autocomplete.