M1 history cleans after restart

 
The H1 keeps, but for M1 I have to import data after each restart.

Why the M1 history cleans after the restart of metatrader?
 
What means "restart of metatrader"?
- computer off, then computer on and start metatrader
or
- close metatrader then start metatrader
 
close metatrader then start metatrader
 
Do You have access rights to save history on the disk?
 
Do you mean if I'm for example admin on xp? Then yes.
But the H1 history for example, it keeps if I restart, the M1 vanish.
I've changed de max bars for chart to max, but still no result.
 
Very strange.
What messages are output to the log of the client terminal?
 
I don't know if is this you're asking:

12:24:46 Custom indicator Price EURUSD,M1: loaded successfully
12:25:02 Custom indicator Price EURUSD,M1: removed
 
Hi Slowa

i noticed this problem, me too ! If I insert 4 y historical data in HST format directly into C:\Programmi\JF Station\history\JanusForex-Server\ , when I open the MT platform from File > Open offline , I see all historical data that I insert in history directory, but if I open the History Centre and select the symbol and timeframe, it download in automatic mode the data from server and overwrite my last 1024 bars data

Why this problem?
 
eugenio, it may be because your HST-files copiright string don't match to client terminal label
 
ok slowa

which is the -files copiright string ?

thanks
 
eugenio, You need to import HST-file not just copy
Reason: