Hello @StaceyCarrelli
Thank you for contacting the Instructure Community. We're sorry to hear you've been experiencing issues with your content being deleted. Had you already posted the actual discussion or you still had the reply box open? If so, your internet connection likely timed out and depending on the device, browser, app version, network connection, etc. can cause it to not auto save. If you had posted it successfully to the discussion, it should not have been removed. It is likely your internet browser and we recommend clearing the cache and cookies or trying another browser.
In Chrome
On your computer, open Chrome.
At the top right, click the three dots
Click settings and then Clear browsing data.
At the top, choose a time range. To delete everything, select All time. I suggest at least 4 weeks
Next to "Cookies and other site data" and "Cached images and files," check the boxes.
Click Clear data.
If you are using the Canvas app currently we also recommend doing the same thing:
What Student app options can I manage from my iOS ... - Instructure Community
