Invalid Error on Upload – Files Too Big

I’m trying out your plugin (ver6.6.02) for our site but have a problem when attempting to upload files into an album from the admin panel using ‘Box A’ (Multiple Photos in one selection).

I receive an error message (see below) that incorrectly warns that the files are too big. However, the total is only 1.2MB (1316923 bytes), obviously well within the limits.

NOTE: I am able to successfully upload these exact same pics using the front-end upload of your plugin. (Also note that I have no problem uploading these pics with the default WP Media Upload).

Any suggestions?

Upload Photos
Notice: your server allows you to upload 20 files of maximum total 1G bytes and allows unknown seconds to complete.If your request exceeds these limitations, it will fail, probably without an errormessage.Additionally your hosting provider may have set other limitations on uploading files.

Based on your server memory limit you should not upload images larger then 14993 x 11245 (160.8 MP)
Box A: Multiple Photos in one selection
You can select up to 20 photos in one selection and upload them.
You need a modern browser that supports HTML-5 to select multiple files

Selected Files:
Name	Size	Type
		
BinaryLightDisplay.png	        373515	image/png
HawkHouseChristmasLights.jpg	111988	image/jpeg
HawkHouseChristmasLights_1000x750.jpg	167542	image/jpeg
KeenerLights.png	        446657	image/png
KeenerLights-700x525.jpg	97622	image/jpeg
toy-shop.jpg	                119599	image/jpeg
		
Total: 6 	1316923 Too big!	Try again!