Still limit 4096 characters

http://wiki.mikrotik.com/wiki/Using_Fetch_and_Scripting_to_add_IP_Address_Lists

in ros 4.2 cant import files more whan 4096 (((

any ways to fix it ?

That limit still exists.

Though you may be able to work around it by uploading files ending in .rsc - they get executed on upload. So don’t upload a list of IP addresses and use a script to turn it into an address list, but rather upload a script that creates the address list and get automatically executed.