First you can use this block use in our **UI components xml Files**.

    <item name="buttons" xsi:type="array">
                <item name="back" xsi:type="string">vendor\ProductComments\Block\Adminhtml\Index\Edit\Button\Back</item>
                <item name="delete" xsi:type="string">vendor\ProductComments\Block\Adminhtml\Index\Edit\Button\Delete</item>
                <item name="reset" xsi:type="string">vendor\ProductComments\Block\Adminhtml\Index\Edit\Button\Reset</item>
                <item name="save" xsi:type="string">vendor\ProductComments\Block\Adminhtml\Index\Edit\Button\Save</item>
                <item name="save_and_continue" xsi:type="string">vendor\ProductComments\Block\Adminhtml\Index\Edit\Button\SaveAndContinue</item>
    </item>
Then you can open save and continue block open and can you use this code

    public function getButtonData() {
    		return [
    			'label' => __('Save and Continue Edit'),
    			'class' => 'save',
    			'data_attribute' => [
    				'mage-init' => [
    					'button' => ['event' => 'saveAndContinueEdit'],
    				],
    			],
    			'sort_order' => 80,
    		];
We also faced this issue, This code working you can use it.