I use a little heat for all my brews and never a problem. I believe your issue is cold combined with gso. Sometimes it doesn't take much cold to crash gear especially in thick gso.
Sit crashed vials in boiled water then cover with towel for 10 minutes then shake vials good. If that doesn't get em back into solution repeat process and if that doesn't work let vials sit in boiling water for 10 minutes, but place something between the vials and bottom of pot so they don't rattle and shatter. 10ml vials are tough as shit so they should be fine. Also don't boil vials with punctured stopper, only non poked stoppers.
If you need any more info tag me
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