So, after some testing, disabling all other plugins and returning to default WP template It finally did remove that empty line. But, I did have WPML installed before and after disabling it, it did left behind all languages ACF blocks, so I had three repeater blocks. If i did remove empty lines from all three repeaters(EST, RUS, ENG) it did save, but if i removed it from only one language repeater block it did not save and recreated that empty line. So, i think that is related to WPML and ACF compability because default template didn’t have any effect with WPML enabled. I have latest versions from both plugins.
