Adobe Acrobat issue?

I purchased a nice little kit of a F4F-3 Wildcat from S&P, recolored by Gerry from the ecardmodels site. While I was drooling over it. I noticed something missing. The A/C codes "F-1" were not there! I PM'd Gerry about this and he replied saying they were there on the copy he sent to ecards. I checked again and they were still not there. For some reason I opened the file with my Android Google PDF reader and they were there! I fiddled around in Adobe for a while and changed the mode to "single page" The codes appeared! For some reason they do not show in "reading mode" but work fine in all the other modes.

I have Googled for issues with Adobe and there are a lot but not apparently directly explaining this issue. Has anyone else had this or a similar problem with Adobe? In any case be aware of this if you use Acrobat on at least Android.