I still have this problem after using all the solutions given on the forum.
And it only runs 15 browsers.
Can't go any further than that and it gets the message across.
While I have used browser hiding capability which can run 1000 browsers simultaneously.
It is hard to understand what you ask without source code example.
By default you can expect such behavior with BAS scripts. In each iteration
Bas would use one value per thread.
When creating resource you should use option "Lines from file and "Use each line one time". And your resource TXT file should have a structure like this >
A1
A2
A3
A4
If that is the case each thread iteration will use only one value, even in multithreaded enviroment.