Hi @steelejamc @Diarmuid_Sexton @Revolution @RickSupport @jdesign @Koen @Nosher @HammerOz
(I hope I didn’t forget anyone!)
Our team just pushed an update for this 
There’s not a hard limit to the meta description in Webflow page settings, but the search results preview there was based on the 155 char limit.
We’ve deployed an update that will bump this up this from 155 to 300 characters so you will be able to see where your descriptions end. 