Yeah so..

Laptop win 10. 2 zorro s 1 MT4
VPS win 16 server. 5 zorro s 1 MT4
VPS win 16 server. 1 zorro s 1 zorro 2 MT4

In speaking with some colleagues the issue seems to be running multiple MT4 with different accounts.

I will check if It happens with 2 MT4s and same account.

If so this would change my issue to.

Does zorro S support the use of multiple MT4 accounts on the same PC.