I use the pen name Karenna Colcroft for my erotic romance (and non-erotic romance, for that matter), and Jo Ramsey for my YA (and some non-erotic New Adult I'm working on).
The only book I've had a major issue with was an adult urban fantasy novel that *I* thought should have gone under Karenna's name, but the publisher insisted belonged under Jo because there's no sex in the book. A romance and some kissing, and quite a bit of sexual reference and innuendo, but no actual sex. I think that decision was wrong, and the fact that the book has only netted me $6.74 in royalties over the past TWO YEARS despite promotion kinda bears that out, in my opinion. Once I get rights back, I'm going to have it redone under Karenna's name.
Under the Karenna name, as I said, I have mostly erotic romance but also a few romances with little or no sexual content. I have both male/male and heterosexual romance. I have a couple-few BDSM stories, and I have at current count 3 menages of various combinations, with another under contract and one in progress.
That might have burned me too; I have had readers of my M/M stuff complain about my hetero stuff, and vice versa. For the most part, I've delineated it by publisher, though a couple of publishers that mostly have my hetero stuff also have a couple of my M/Ms. But at the time I started writing M/M, after two years of only writing hetero romance, I was already struggling to juggle the two pen names I had, and I didn't want to add a third.
At the end of last year, after some input from other authors, I came up with the "brilliant" idea of adding a third pen name for *paranormal* romance. That didn't work out; I already had several paranormal titles under Karenna's name, and I wasn't able to effectively manage three pen names with websites and social media, so other than one short story in one anthology, the third pen name has died a quiet death. I'm not great at promo as it is, and trying to juggle promo for two names stresses me out enough. I've now proven to myself that I can't manage a third.
However, there was never a chance in hell that I would do the YA under the same name as the erotic romance... I am well aware that teens have, watch, and read about sex, but that doesn't mean I'm going to encourage them to read Karenna's stuff or make it easier for them to find it. Nor am I going to shoot myself in the foot with potential school visits and library placement, and a few family members, if the wrong person finds out that I write erotic stuff.