Self-destruct Interrupters in Caves caches (those hidden behind full walls) are capable of interrupting self-destruction of unaware parts,
even without getting picked up by Cogmind. (And they don't lose any power and don't flash blue.)
It's been a while since i noticed this, possibly a few Betas back, but the only thing related to this that i found in the changelog was about SDIs not having any effect if dropped by other robots, so this is probably still a thing?
Ha that's not Beta 14, or even Beta at all, that's just SDIs doing normal SDI things :P
They were built this way from the beginning, it's known and not an issue. Ideally they could be rebuilt using Cogmind's newer systems that would allow finer control, but I decided to just leave them as is for now (there are some advantages...).