Build 840 M1 charts losing template settings

 
My M1 charts are losing their template settings - see
http://screencast.com/t/KaLpidQ3FlZ
In practice,
- it happens more on fx than on indices charts
- and if I never alter timeframe, there is no problem. 
But as soon as I switch to say m5 and back again, on the next mt4 restart the M1 charts are scrambled. 
No only are some indi names lacking, those whose names are listed display nothing. 
This seems to be a continuation of the problem raised at
https://forum.mql4.com/67275
Reason: