It depends because some bugs may not be general because there are some factors that trigger up some bugs, and that is why most platforms always update their system or apps, for example, when a gambler is using a poor internet connection it may trigger some bugs, or may be he has some apps that need upgrade to meet the site standard such as browser or other apps it the casino have an app and if he is using the apps.

So much so in the last paragraph of your reply you already mentioned everything, poor service could also be the reason but just as I said, only support could provide the best answer to that problem and the player needs to get in touch with them.