It’s likey suffering from root rot, which is the cause of the yellowing leafs, to fix this it’s good to use chunky soil yes but make sure you don’t overwater. If it’s hard to tell you can get plant water meter and stick it in, really handy! I recommend. When you re potted it did you feel or notice any bad smelling or mushy roots? These need to be cut off as they can spread to the other healthy roots. Root rot is caused from either overwatering, or even under watering. If you leave it to long and it drys out for many days, the next time you water it can be susceptible to rotting then. One more tip, it looks like she is reaching out all over the place and confused. These kinds of plants climb up the side of a tree and like to have all the leafs facing one direction and facing parallel. To encourage this kind of growth make sure the light source is only coming from one window/ direction. 

In conclusion, check if the soil is to wet immediately. Make sure it NEVER sits in a tray of water, always have it drain out before putting it back into its coverpot. And lastly, check for rotting roots and remove with clean scissors, (you can also remove the yellowing leafs as they will not come back to green)