Player Limits (?) and Card Deck Anomalies

In recent sessions running through Google Hangouts, we've had a couple of issues.  I have six players in the group (plus me), which may contribute to the problem, as it wasn't until we added the seventh person.  Sometimes, we can't actually see everyone's avatars at the bottom of the screen... an issue that's generally repaired by the missing party simpley dropping out of Roll20 and rejoining.  But more importantly, we've been unable to use the card deck effectively.  We play Savage Worlds, so it's important to be able to draw cards each round during combat.  After I deal the cards, I can only access up to four of them, so there's always a couple players whose cards I can't see unless they drag the images off to the clutter of the main screen.  I have a session tonight, so I'll try to note more specifics, in case that's helpful. I currently use Windows 8 with Chrome.

I, too, have seen the missing-player-icon thing, and not just on large groups. The other night there were a total of four of us playing, and the GM's icon (To clarify, the window where, if he were broadcasting video, his video would be seen) was missing. He, obviously, was still in the game, but nobody could see him. His dierolls worked just fine, and we used Skype so I don't know whether he would have been muted as well. This is not uncommon; it's happened in, perhaps as much as 1/3 to 1/2 of all games I've been a player in. It seems more prevalent in large groups, but as I said it's happened in small groups as well. In addition, sometimes they will attempt to return, it doesn't work for some unknown reason, and then they DO return... and there's now two windows, one normal and one that looks like it's attempting to connect. Both windows are connected, ie: shown above the same name tag. Edited to add: It's not just me; when it happens, every other player at the time sees the same thing. Haven't seen any i ssues with the cards, as I only use them in one campaign. Except that, once, early on, I recall not being able to see the faces on cards in players' hands, despite having double-checked that yes I was indeed set up to do so. Now I just leave all the cards on the table.

The Google+ film strip is fine... it was just the avatars.  And they didn't present us any difficulties with this week's session.  The cards were still giving us trouble.  I deal them by clicking on 'deal' and entering the number of cards and the recipients in the box that pops up.  I am then able to begin selecting each of the little card icons that appears above the avatars to reveal the cards, but after the first five cards, I am unable to click open the cards above the last two avatars in the line.  I have to ask the players what they drew, and they've been clicking and dragging them out of the box onto the tabletop to show me, but it's less than ideal.