Data import shows no sign of completion

Hi,



Did anyone experienced the same thing as I am?



I am trying to import data (from dev) to a custom object after deploying it to Client in production but gives no sign of completion or any error.



Section > Data Import > Upload file > Close.



While doing this, I am actively checking console and network to check for any signs of error but it doesn't have any. Its been more than >40 minutes for a 2 row entry I exported from dev.



Any possible reason?



Creatio Version: 8.1.1.3635



Thank you.