Problems after SR1 update

I work with Studio 2017. After having updated to SR1 yesterday my Autosuggest  stopped to work and also suggestions from MyMemory plugin are no more inserted in the target text (before that it suggested even translations of the names of streets etc.), the report "No matches found" appears almost  after every segment. Trados is not able to submit a suggestion even for such a simple phrase like "water content". I checked all the settings. Could anybody help? Is it possible to return to Studio 2017 before this SR1 without loosing my work? Thanks. Olga