Error 1535 after "start slave" (no replies)

Hello @All,

I have a question about MySQL Replication and I hope somebody can help me.

We use since years a Master-Master Replication to do online schema changes in the following way.

- stop slaves on both nodes
- switch the web application on one node
- alter table on the passive node
- than start slaves on passive node to get changes from active since stop
- after sec. behind 0, switch the application on the node with the new schema and the current data
- start slave on the other node, wait again for sec. behind 0 and switch the application back on virtual ip


but since few weeks we get each time after step 4 (start slave on passive) an error: 1535 SQLSTATE: HY000 (ER_BINLOG_ROW_WRONG_TABLE_DEF)

I searched @bugs.mysql.com, but without any positive result
We use currently the last stable version of MySQL Server 5.1.58


Thanks in advance,

Ricardo