Yeah would be great to check the left gate as well just in case. I look at it mutiple times but I could not find anyhing wrong with it, it also worked for me in testplay.
Did you have unlock owl? It gives a decent visibility boost as well as the passive upgrade light stones from town.
Since I can't find the bug this way, if you would share your safe file with me, then I could take a closer look and figure out the problem better.