I tried to put in rec metals, and take out tf2 keys, it started to check my rep etc, and was sending the offer, asked me to accept it within 3 minutes, and the status bar appeared at the bottom but it disappeared after 1-2 sec.
Please take a look at it!

(Puting gifts in and taking csgo keys out works)

I do not find any obvious problem. I emulated what you did and it went fine. How about separating your deposit and withdraw into two transactions?