Short Stories and a sense of an ending

One of the most difficult aspects in writing a short story is bringing the story to a conclusion. As noted in many previous posts, there are so-called open stories and closed stories. Roughly speaking, the closed stories end in some kind of dramatic climax or confrontation - sometimes death - whereas open stories, much more in vogue over the past century - end with a perception, an image, or perhaps a realization. Either way, ending a story well is a challenge; they have to avoid cliché, stating the obvious, and melodrama while maintaining a sense of an ending, not an abrupt halt to the narrative. Reading through parts of The Best American Short Stories 2018, we can see that this problem remains an obstacle to greatness, even among the award-winning stories. Writers, young writers in particular, seem to know how to get a story going, with a sharp image in the opening sentence or paragraph, and good writers will always know how to proceed from there, sketching in a delineation of the main character or characters, providing a sense of place and a setting in time if appropriate, and building a narrative arc or plot line. But how to conclude? One story in the collection called and set in Los Angeles gives us a quick sketch that feels true to life of an aspiring actress living in shared quarters in LA and barely making a living wage at a story selling overprice designer label togs. Soon she supplements her income by catering to a creepy, kinky clientele who will pay her for underwear she's worn. At the end of the story she meets an especially disturbing customer, provides him with what he wants, feels endangered, and, bing, the story ends. You lost me there! Another story starts of with a terrific sentence, as a 60-something woman receives a call notifying her that excavators have  found the lost remains of her brother, who died in childhood at an Indian Bureau school - powerful start - but after several scenes with the woman coming to terms w/ this discovery, she drives to a nearby rez, buys some staples, and prepares a bowl of mush or porridge much like that her grandmother used to prepare. It's a nice moment I guess, but it doesn't alleviate or respond to all of the emotions the story raised and feels too much like heavy-handed symbolism. Just like novels, stories need to achieve a true sense of an ending.