So couple time so far jsut at random while working on part of some cloth sim I hve on cahracter \I see my cloth jsut starts falling down.. going back to apex animate I see this mess. Why? What happens?
Only solution so far is loading backup from earlier... which is not ideal at all

Your cloth sim I assume is totally in a different chain? It's really hard to say without some of your scene files (before and after it's broken). Please submit them into support using the Support > Report a Bug/RFE link at the top of the website.