Carlos,
Sorry that you are seeing this issue.
Can you please give us some more details?
1. In which file types are you seeing this issue?
2. Does Ctrl+Space at any other place in the file work? Please share with us the code snippet where you are trying to invoke content assist to help us investigate further.
3. Please also share with us the .log file located in the workspace dir/.metadata/.log (change the extension to .txt and attach it here)
Alternatively, you can reach us via Live Chat (Help > CodeMix > Live Chat) for a quick diagnosis.
Apologies for inconvenience caused.
–Swapna
Genuitec Support