Thank you for replying. I was never informed of the change, however I am not the one who made the interactives because I don't know how. Unfortunately, I also don't have the time to try to create my own and I haven't been able to find any other interactives that cover the content (at least not as well). Thanks.
Indeed, if someone else made them (sorry, I wrongly read your message as saying you had made them), then THEY had 3 years to solve this, and it is those people you might talk to. Conceivably, they did it and didn't tell you. In general, if there is a public forum where these interactives are discussed, you will probably find lively discussion on this matter, and you might find suggestions of alternative presentations.
In general, beware of building lessons on tech solutions; things change rapidly and you can expect pretty much everything to fail sooner rather than later. Keep on top of what is expected to go away.