For the last hours, LOG CALLS create CALLS not linked anymore to a LEAD

For the last hours, LOG CALLS create CALLS not linked anymore to a LEAD

i mbased in London
so BST time.

I was working on the old version of Zoho CRM.
I had pop up window to use NEW zoho CRM 2016
i continued working on the old version.
i logged a call (being already in one LEAD page).
i saved it. and it doesn't appear anymore in the Closed activities.
if i make a search i'll see my call in a window called CALLS, but this call is not linked anymore to the LEAD.
This morning i've been logging calls and it worked fine, i.e., they appear in CLOSED ACTIVITIES

As a test i created a task, (as completed) saved it, it appeared in CLOSED ACTIVTIES,

i tried the new version ZOHO CRM 2016, same problem with the Log Call.

If we can link a Call anymore to a LEAD, what the point of a CRM system?

Help.

JGC