Strange, those temps should be good enough but sometimes it may take high 80's low 70's to get them to wake up. Sometimes they act weird if a dormancy was skipped. The second picture looks like it's probably rotten though.
All of my Sundews were outside during the winter. When I took my Drosera Intermedias into the basement while they were dormant molds love it, but did the plant like it being in the basement when dormant or outside?