There seems to be an issue with the API sometimes returning a mangled JSON response, which then causes the frontend application to error and blank out the page. Need to investigate the cause of the mangled JSON response. This doesn't seem to be an issue with static pages and assets, only JSON responses from API calls.
Web configurator server had a fix made and was recompiled in v0.4.3. Keep an eye to see if lockups persist, as I can't reproduce them when spamming the different config pages and saving.
There seems to be an issue with the API sometimes returning a mangled JSON response, which then causes the frontend application to error and blank out the page. Need to investigate the cause of the mangled JSON response. This doesn't seem to be an issue with static pages and assets, only JSON responses from API calls.