with two exceptions lol.
Compost and worm castings.
if you feed a salt based synthetic feed over a worm casting or a highly compost based soil (this incoludes epsom salt and calcium phosphate
@Putthataway those are still soluble salts) you can trigger an acidic cascade. A situation where almost no matter what you do your ph will continuously drift more acidic and youll be fighting lockout your entire grow. Burned leaves, scars, calcium & potassium & magnesium deficiency, all seemingly stacked on one another. Among other symptoms
Its a pretty uncommon thing though. Although lots of hydro stores have new growers in ocean forest + mfox farm trio, which is a recipe for just this kind of lockout

its essentially the Chernobyl reactor 4 problem... just the soil acidity version. 9/10 times a new growers is fighting compounded issues they cant seem to figure out, its actually a lockout situation and they can find the source of their problems in either salted worm puke, or salted bat shit. Pure truth.