The reaction is red for my but my stock says i have Platinum Bars and Wood logs and i can see them to when i check my stockpile manual, also i dont use burrows except on sieges and yes i have a Magic Dwarf trained him into an elite military and made sure hes not in service while i want to create the wand.
It doesn't matter if you use them only in sieges, I said it's a bug, so it's something the game should not do: even if you deactive it from military page, the burrow still exist, and the bug prevent the workshop to search for reagents outside burrow.
So, this should be your problem ASIDE from you removing and remaking burrows every time (if this is the case then I apologize for not understanding), but if you just deactive it from [m]ilitary, then [a]lert, then you must make a stockpile for wood and another one for metal inside the burrow, even if it's inactive right now.