After updating from J2Commerce 4.0.10 to 4.0.11 on 5 websites, there are database tables not up-to-date. After fixing them, viewing System > Extensions > and search for J2Commerce the display is missing the version number. When I select J2Commerce and click Actions button > Refresh Cache, the Date and Author data disappears and version number is still not shown.
See this demo video = https://share.zight.com/7KuwqjK9
After recording this video, I noticed that Joomla continues to show update available for J2Commerce with the installed version shown as "unknown." See screenshot.
Richard