For the first few weeks after installation, the mounting solution between the covering and your glass is still drying out. During this window you may see small water pockets, a light haze or a slightly cloudy look. This is normal, it is temporary, and it resolves on its own as the covering cures. Depending on the product, the season and how much sun the glass gets, curing takes anywhere from a few days to about a month.
Two rules during curing: do not wash the glass, and do not poke at water pockets. Let them evaporate on their own. If anything still looks off after a month, call us and we will come look at it. That is part of the job, not a favour.