Overpacking the bags
This is a hard one since some people would advise you to overpack your sous vide bags to stop them from floating, which is another typical error committed when utilizing this cooking technique. However, as demonstrated by the advice about packaging too many eggs, doing so can result in a variety of problems, such as uneven cooking, bag damage, and damage to the eggs themselves. Sous vide might be straightforward, but the few guidelines are crucial. The need that the meat or veggies within have even access to hot water is a significant one. Things crammed into the center frequently don't become warm enough when the space is overcrowded.
If your sous vide bag is floating, as Sous Vide Wizard advises, try an alternative correction technique. It's possible that your vacuum seal isn't keeping out enough air, which would lead to unneeded buoyancy. You may also try making bite-sized treats using mason jars, which not only stay at the bottom but also allow you to do that. Finally, you may place a weight on top; a fermenting or canning weight would work well for this (and can be found on Amazon).