Sorry to hear, Mangal.

Were you still running 1.20? Or only 1.26? Did you upgrade to 1.22 and 1.24 also along the way?

I recall that 1.22 was significantly changed from 1.20, and could not correctly handle 1.20 trades for Z5, and I think Z3 also. I am still running 1.20 for a few old Z5 trades. So far it has not closed them for loss...

What you've experienced sounds like the new algo added to Z5 for low volatility which can't correctly handle old 1.20 trades.

jcl can clarify for certain.

Again, sorry to hear.