It seems there is a bug during import process for screens in the frontend.

After creating some screens I exported them but at the moment, when importing them (either on the same Zabbix - Server a fresh installed one) the fronted show the error message "Screen "xxx" cell X - 0 Y - 5 is already taken.

Please find in attachment the XML file I try to import.

Note : at first glance I thought this was the bug reported in "https://support.zabbix.com/browse/ZBX-7338" but it is considered fixed in version 2.2.2 and this one happens in 2.2.3 and 2.2.4.