Hello Lisaaaaq, welcome to the dmt-nexus!
I don't know much about solubility of DMT in vape liquids. I'd assume it depends on the exact composition of those liquids, percentages of PG/VG or if something else is used.
I do know DMT freebase is insoluble in water, so my best guess is that the liquid and the water don't mix, and the water kept (some of) the dmt from dissolving. It then precipitated (fell back down) and is still as good as new, if you want to try dissolving it in liquid again. Just make sure that it is totally dried from water.
If you want to use it some other way, you may want to separate it from the liquid, which you could do with a mini-A/B.