Article Quick-list image upload error: File was not uploaded. Error 104

[GhostRider2110]

Link to my forum: https://tp3.usscalemasters.net/forumsmf2 (In maintenance mode)
SMF version: 2.1.4
TP version: 3.0
Default Forum Language: English
Theme name and version: Default Curve 2
Browser Name and Version: Several
Mods installed: TP 3.0, Custom Form 4.0.6, SMFPacks Multimedia Gallery 2.0.4 SMFPacks Downloads Dir
Related Error messages: File was not uploaded. Error 104

Trying to upload an image in quick-list and getting the Error 104 message. Tried another version of the image but in same .png format only smaller.  So ok, I have upload size limit set to low.  The image that failed is 1.09MB and the version that worked is 39.2KB.  So I went to Article settings say that  Max image upload size was set to something like 500Kb  so I bumped it up to 4096Kb.  Still get the same error?  Am I adjusting the correct setting?  No other error in any logs.  

Thanks
Mitch