Upgraded Lookup Editor 3.0.5 Errors String value too long; and The lookup could not be loaded from the server

[dmitri47]

Just upgraded the Lookup Editer from 1.4.1 to 3.0.5 and started getting these errors:
Version of Splunk 6.5.1
Version of Lookup Editor: 3.0.5

Errors: In Lookup Editor: The lookup could not be loaded from the server
in Splunkd.log: 12-26-2018 15:09:45.015 -0500 ERROR HttpListener - Exception while processing request from 10.10.10.10 for /en-US/splunkd/_raw/services/data/lookup_edit/lookup_contents?lookup_file=nameofcsv.csv&namespace=cnd_view&header_only=false&lookup_type=csv&owner=nobody&=1545854994658: String value too long

[p_gurav]

Hi,

Can you check any log message using below search :

index=_internal (sourcetype="lookup_editor_controller" OR sourcetype=lookup_editor_rest_handler OR sourcetype=lookup_backups_rest_handler)