cebab-pl

Thanks Ben. I modified the code and it works:
In: app/view/calendar/view/month.php

for( $x = 01; $x <= 12; $x++ ){
					$local_date
						->set_date(
							$local_date->format( 'Y' ),
							$local_date->format($x),
							1
						);
					$args['exact_date'] = $local_date->format();
					$href = $this->_registry->get( 'html.element.href', $args );
					$links[] = array(
						'enabled' => true,
						'class'=> 'ai1ec-prev-month',
						'text' => '<i class="ai1ec-fa ai1ec-fa-angle-left"></i> ' .
						$local_date->format_i18n( 'M' ),
						'href' => $href->generate_href(),
					);

			}

but it can be removed after updating the plug

I tried… but the problem is probably in JS with calculation of the position-absolute TOP for .ai1ec-event elements

Screen: http://prntscr.com/ca84wb