I've tried nearly everything. The settings apply when I change them, but they don't take affect. I've unchecked the button, snooped around with other mods I'm using to see if it's a compatibility issue, and I've looked everywhere in the config files and disabled the settings from there, and the auto-deconstruct still takes place.
It's very annoying, and I can't even use personal roboports out in the open because robots will pick tissue up randomly. I'm always having to wait for my robots, and I tend to lose tons of them because they randomly fly right into enemy fire trying to get a single alien tissue, or occasionally I might leave without my robots and they'll randomly come into view, slowly flying towards me hours later.
I don't really even need or want this feature, since I already have mods that do this job better. It acts as more of an annoyance rather than a helping tool.
I just can't disable it. It doesn't work, and I believe I'm on the latest update for this mod.