Hi
Sorry to hear the superglue didn't hold longer term but good to hear that you found an alternative solution. I hope that proves more successful.
I would not give her anything with sugars (it will feed the yeast) or a lumpy texture until her crop is working properly..... I would stick with vitamins in the water and perhaps some scrambled egg, but the Exact baby bird feed would be a good investment as I believe it is a fine homogenous powder that you can mix to a paste with water and maybe swipe bits into her beak like the coconut oil. You will probably need to start treating the sour crop. Woman's vaginal thrush cream will help to kill the yeast. Again swiping bits into her mouth for her to swallow.
They also get fed non-gmo grains and a little bit of corn during the winter for a little extra energy.
I have concerns about her diet and believe it may be responsible for her current problems. I'm not sure why you would feed non GMO grains and then add corn. I have a theory that these grain type feeds may be responsible for a number of hens that have had prolapses and other serious issues. There are several threads here on BYC this winter where people feeding these mixes have reported such problems and worse.
The way I see it is that chickens prefer some grains over others and with a feed where there are fragments of grains or whole grains mixed together, they will select their preference and not get a balanced diet. Hens can locate and eat the tiniest specs of bugs and other morsels if you watch them scratching and foraging, so it is not unreasonable to say that they can easily select their favourite components in a grain mix. Most hens love wheat and corn but the higher protein lentils and pulses etc are less attractive. If your bird is getting more carbohydrate and less protein than she needs, she will start to lay down fat deposits. These can cause a number of health issues one of which is that fat builds up in the belly and around the vent and constricts the cloaca leading to problems laying eggs and having to strain much harder. She may also not be getting enough calcium due to this selective eating which may cause the soft shelled eggs. You have also been adding corn to the diet which adds more of the carbohydrates that so easily turn to fat and further dilutes her overall protein and calcium intake.
I would recommend you try a pellet or crumble type feed (there is less waste with pellets) which is homogenous and therefore prevents them from picking and choosing like they can with a grain mix.
The above is purely a theory of mine but I would urge you to test it by scattering some of the grain mix down on a paving slab or other hard surface and watching how they eat it and whether they eat particular components before others. My guess will be that they will scratch through it to find their favourite bits. If you normally feed pellets and put a pile of them down they usually just eat it without scratching because they know there is nothing more interesting in amongst it. It may seen boring for them but it means they eat the whole ration and therefore get a balanced diet and if you let them free range or give them compost to scratch through then they are getting exercise and free range as well as a small amount of bugs and foliage etc to add variety to their diet and life in general.
I know many of these grain mixes are organic and GMO free etc and probably very expensive and people think they are giving their hens the best, but it may not always be as beneficial as you would hope.
If you decide to switch to pellets or crumble, be prepared for them to go on strike and reject the new feed.... you need to be tough with them to make them eat it. It can help to slowly grade it in with their old mix.
If you are interested I can probably find and link a few of the other posts. One or two lost their birds and had necropsies done and fat deposits and potential diet issues were identified.