Action button not showing when selecting a record using checkbox

[VinceSanityyy]

Issue Type (delete the irrelevant ones)

• Bug

Specs

What version are you using?
0.2.1
What browser?
Chrome

Expected Behavior

Action button should show when I select a row via checkbox

Actual Behavior

No action button appeared

Steps to Reproduce the Problem

Here is what I tried

                    <vue-good-table
                        @on-selected-rows-change="selectionChanged"
                        :columns="columns"
                        :rows="courses"
                        styleClass="vgt-table"
                        :search-options="{ enabled: true }"
                        :pagination-options="{
                        enabled: true
                        }"
                        :select-options="{ 
                            enabled: true,
                        }"
                    >
                    <div slot="selected-row-actions">
                        <button>Action 1</button>
                    </div>
                    </vue-good-table>

output

jsfiddle

https://jsfiddle.net/xb649ech/1/