Wrong or incorrect tick values Python / Metatrader 5

 

Hello friends,

I'm testing an automated trading bot (Python + Metatrader 5)

For my bot I'm requesting the price values for: open, close, low, high (for last price bar)

For some time ranges it suddenly stops working. The behaviour is:

open (empty value)

close (empty value)

low (empty value)

high (expected value)

After hours getting prices is suddenly working again without changing anything.

Any ideas are highly appreciated