Almost on every XAU or XAG trade in z12 and z3 I get:

from Zorro (1.24, 1.26, latest mt4 bridge installed):
[XAG/USD::S3473] Trail 1@17.601 Stop 17.504 at 15:38.
[XAG/USD::S1159] Trail 1@17.499 Stop 17.411 at 15:43.......
[XAG/USD::S1159] Can't close 1@17.014 at 17:00
[XAG/USD::S1159] Can't close 1@17.025 at 17:22
[XAG/USD::S3473] Can't close 1@17.042 at 17:23
[XAG/USD::S1159] Closed 1@17.071: +123$ at 17:23
[XAG/USD::S3473] Closed 1@17.090: +145$ at 17:24
(I closed manually)

from metatrader Alpari demo(same with FXCM metatrader):
18:22:48 Zorro EURUSD,H4: Close [XAGUSD:S1159] -0.1@17.042
18:22:48 Zorro EURUSD,H4: invalid lots number for OrderClose function
18:22:48 Zorro EURUSD,H4: Close at 17.042 failed - invalid function parameter value
18:23:04 Zorro EURUSD,H4: Close [XAGUSD:S3473] -0.1@17.046
18:23:04 Zorro EURUSD,H4: invalid lots number for OrderClose function
18:23:04 Zorro EURUSD,H4: Close at 17.046 failed - invalid function parameter value