Abbreviations are not expanding on <space> but do expand on hitting <return>.

[s-a-c]

can you please help?
I'm sure I've read in the docs about the ' ' being used to delimit and expand abbreviations -- I can't seem to find it now and I've obviously done something to mess up the default behaviour.

For clarity, and as an example:
'
"eza"="eza --classify --color=always --color-scale --group-directories-first --hyperlink --icons"
"l"="eza"
'
with the above abbreviations -- I need to hit <return> immediately after the abbreviation, in order to get expansion and execution.
If I try to type a traiiing <space>, there is no expansion preview. Moreover, expansion now fails for execution.

So: l<return> expands and runs eza successfully.

BUT l<space><return> produces "zsh: command not found: l".

[olets]

The relevant docs are here https://zsh-abbr.olets.dev/widgets-and-key-bindings.html

//

Making sure I understand:

1. you want space to expand and then execute
2. not ony is space not doing that, but it isn't even expanding

Is that right?

Did you have that working before? Does your setup do something custom with abbr-expand-and-space? In the recently-released v6, that's been replaced with abbr-expand-and-accept.

//

Moreover, expansion now fails for execution.

This bit is expected. Trailing (and leading) whitespace matters in abbreviations.