I have 2 issues while doing LWC development:
1) when deploying a new LWC, it deploys all files correctly (appears to anyway), but then removes all lines from the .js file. The other files (.html and .js-meta.xml) are not modified.
2) when trying to update an existing LWC, the deploy fails in salesforce with this error - UNKNOWN_EXCEPTION: An unexpected error occurred. No other details are given and I cannot find any other info detailing what might be wrong. If I delete the existing LWC and re-create it with the updated content, it deploys fine.
I believe I am on the latest release - Bloom R32, Version 18.104.22.168