Token issues

I've just been checking a game that I'm meant to be running later today and noticed a few issues. Tokens aren't being targeted properly.  I use macros that allows a player to use the @{target|target1|ac} option to show the enemies AC for easy comparison.  Sometimes this is working sometimes it isn't.  Sometimes if I drag a new token onto the board it will work fine for a couple of attacks and then say that it can't find the target token's ac attribute.  If I check a token using the @{selected|ac} it finds it without an issue. In addition to the targeting problem, I have also had times when bringing new character tokens onto the board the token copies itself when I move it, and then the copies can't be deleted although they can be moved, with out refreshing Roll20.  Only one token shows the coloured bars and name bar at a time, but it changes to which ever token is selected and moved rather than staying with one token. I have tried it in both Chrome and Firefox, with up to date versions of both, and the problems occurs on both browsers.  I have already cleared my cache in case that was the issue.

What character sheet are you using? Where are you activating the macro from? Does it work if the sheet of the targeted token was recently opened? Are you on Jumpgate or legacy tabletop?

You may be affected by lazy loading. Try opening the target's character sheet and keeping it open during the game.

Tried a game to day and it worked fine. so either the issue is solved, has solved itself, or is just with that game.. The latter I'll find out when I try it next.

I've also had problems with self duplicating tokens in the last few weeks.  Also have had disappearing tokens. All is resolved with restarting Roll20 but it is really frustrating