Issues with cloning...

So I'm new to the grow game. I've made it through 3 of my own gardens so far, and helped with 3 others prior. This is my first time taking my own cuttings though. My dumbass left trash in my room that began to rot and wiped out my first set of cuttings. I then got rid of the trash, the cuttings, and bleached my entire basement, floor to ceiling. Now with this second batch of cuttings, I've had to remove 4 of my babies due to symptoms of fungus and/or mold...and with each following day, I see signs of it on more of my cuts. How long can I expect to have this issue assuming from here on out I plan to keep a prestine environment for my babies:-?
 
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