Thanks! Next step: close MT4, then go to your user folder/Appdata/Local/Temp, and look for files with the name "mt4*.sys". Delete those files if some are there. Then start MT4 and the Zorro EA so that it crashes again. Check if a new file with name "mt4*.sys" was created. Upload this file. It contains information that can help determining the problem.

Actually, deleting the .sys-file resolved the problem - at least the particular problem of the Zorro EA immediately unloading after being added.

However, Zorro now complains it cannot initialize the MT4 bridge. Not sure if it is related, but here is the output from Zorro and MT4, as well as the .sys-file (remove .zip, had to add this to allow it being uploaded).

ZORRO:
Zorro 1.50.2 Trading Automaton
Made with Gamestudio by oP group 2015

Z12s (oP group) ..
ZorroMT4s.dll => MT4 (real) plugin mounted
Login MT4 (real)..
!Can't initialize MT4 bridge!
Check Zorro EA and account number xxxxx
Can't connect!

MT4:
2016.09.15 12:44:21.272 Zorro EURUSD,H4: initialized
2016.09.15 12:44:21.272 Zorro EURUSD,H4: Timer set at 50 ms
2016.09.15 12:44:21.272 Zorro EURUSD,H4: Window handle initialized
2016.09.15 12:44:21.272 Zorro EURUSD,H4: DLL initialized
2016.09.15 12:44:21.256 Zorro EURUSD,H4: Zorro Bridge 1.11 on Real Account xxxxx
2016.09.15 12:44:18.792 Expert Zorro EURUSD,H4: loaded successfully

So,

for my, after delete mt4*.sys now working. I thinking during the install new version must be close MT4 also. This is a my mistake. Becouse I replace mt4 bridge in the opened MT4 scrap.

Milan

Girb: You need an update of your MT4s.dll to version 1.50. This update will be sent to all MT4 subscribers next week when 1.50 becomes the official release. The old MT4s.dll won't work with the new bridge.

Ok, thanks.

I found new potential bug. After starting the train with multicore:



see picture - this is the same overnight - cannot finishing. Still running.

Milan

If your script takes unusually long in multicore training, or if training does not work at all, please send us that script so that we can check what the problem is. You can either upload it here or send it to support (at) opgroup.de.

New version:

http://server.conitec.net/down/Zorro_1506.exe

A bug with WFOPeriod was fixed in this version.

What was affected by the this WFOPeriod bug?
Are testing results of Z systems affected?
Do you recomend to update Zorro if 1503 was trading live?

Thank You

The bug affected the first price of a live trading session. The Z systems and test results were not affected, so if you're already trading 1.50.3 live, you need not necessarily update that system.