IB symbols changed?

Does anyone know, if something has changed with the symbols from IB?
Since this morning, I get the message, that my symbol is invalid.

Symbol Invalid

What works for me..
Just remove DTB and replace it with EUREX
So, for the next coming DAX it is:
FDAX Sep 22-EUREX-FUT-EUR
and f.i for the Buxl:
FGBX Sep 22-EUREX-FUT-EUR

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