append queries (mysql)

Hello v-yuta-msft 

Thanks for getting back at me. 

The issue seems related to : https://community.powerbi.com/t5/Desktop/mysql-append-query-error/m-p/376476/highlight/false#M171077 

I did not input sql query I used the standard function of powerbi. It can be reproduce with the following steps : 

1) load 3 different tables in powerbi from mysql 

2) append 2 (any of the 3) tables into a new table -> it works (in query editor and dashboard editor)

3) append 3 (or more) tables into a new table -> it seems to work in the query editor, when I get back to dashboard editor and try to apply the changes I get the error message mentionned above

I hope it's clear. 

Thank you

gaful