MMSC16answered grow question 5 months ago From what I gather from seeing other posts on this - it's due to the shutdown on Saturday (of which I was away). Since I returned from Vacation there've been a plethora of issues. Random inaccurate values populate my grow diary conditions - uploading posts results in an Error with no thumbnail selection being shown.
Having said that, it seems that some of the comments were saved if edited yesterday. Today the option to edit diary has been removed as far as I can see.
No worries man, you're just experiencing the same as everyone else :)