get_iqfeed_data with IQFeed 6.2.0.23

[Former user]

With new version of IQFeed 6.2.0.23 i receive an error using: get_iqfeed_data('@NQ#C','2012-01-01','2020-10-01',period = '15min')

the error i receive is:

Error in rbindlist(message_chunks[1:message_chunk_index]) : Class attribute on column 1 of item 12 does not match with column 1 of item 1. In addition: Warning message: In is.factor(x) : closing unused connection 3 (->localhost:9100)