We've now resolved the incident. Thanks for your patience.
We've additionally fixed the historical data accessed via the REST API (trades, quotes, order books) or via the flat files (CryptoTick - trades, quotes, order books, ohlcv).
At the moment we are working on the last problem, gaps in the OHLCV data when accessed via the REST API, the same data accessed by the flat files (cryptotick download or bucket push) will not contain gaps.
We've fixed the core in real-time and the solution is stable. We are gathering the data to backfill the gaps in the historical data.
We are working on resolving issues related to missing data in the EMEA region for specific exchanges in real-time and in the historical data.