Adlist not responding after too many entries

Hi, i have a RB5009, i wanted to try the adlist feature and gathered some lists in a text file which i then made into a rsc script.
I set the DNS cache to 700000KiB and imported the lists via terminal.
The first 20 entries went fine, then i got an error:

[admin@MikroTik_RB5009] > ip/dns/adlist/add ssl-verify=no url= https://winhelp2002.mvps.org/hosts.txt                
failure: error adding adlist source

Even when i deleted the lists, the error was still there, it’s only gone after a reboot.

Is there a limit on how many adlists i can set? I have about 200.000 entries in those lists right now.