Topics with a marked answer cannot be opened anymore. Happens here on the forums and all my sites. 

Example: https://invisioncommunity.com/forums/topic/462565-link-back-to-landing-page/

 

Error: Call to a member function truncated() on null (0)

Turning off “Enabled Solved” removed the error. 

Edited July 14, 20213 yr by opentype

Thanks, we'll be patching this issue.

...and the patch is out.