MT5 Backtestt Error History cache build error

[Mr Somkanae Akkarakantrakorn]

I'm new to MT5 when i backtest my ea and i found error  history cache build error please give me advice

[tory_]

Facing the very same problem with some of the EAs and not with others - would appreciate any guidance on how to debug it

Here's more details on my issue: https://www.mql5.com/en/forum/371669#comment_23626248

[xiaoxuanfeng]

this doesn't seem to be a bug in EA...

its more like some problem happened on your computer

please check weather you have sufficient memory or harddisk space in your computer.

usually ,such stability problem is totally irrelevant with your EA coding..., just cause by some other issue..

[tory_]

Well, I certainly have sufficient memory as some tests are running just fine.

Others fail with "history cache build error".

I found no correlation between the failures and the potential memory utilization, plenty of hard drive space.

Some strategies run just fine in the visual mode, but fail with this error as soon as I switch the visual off.

The error message is kind of unhelpful, would be good to understand what might be the underlying issues/reasons