Bot does not process all cases in the loop

I wrote a code to read a list of data from excel. Then i run a loop to process each line of the list. After the loop, the code would complete a few more lines of actions.

Most of the times, the code runs smoothly. However i realized recently that some times the bot would partially process the loop (e.g. process 100 out 140 lines) and then would jump to run the last few lines and end the whole RPA

Anybody encounter the same issue? What could be the possible reasons? Limit of loop cases?

Hi @biying_weng, and there is no error message at all, it just proceeds to the next steps in the recording?