Hello Luis
Let me step in here. I don't have any news for you, but I wanted to help set expectations, particularly in the context of the renewal reminder you just coincidentally received.
You haven't had an update from Waqar because there hasn't been any news to share.
As noted by Waqar the issue was reported, confirmed, and then escalated to the developers, along with some preliminary debugging notes.
The developers have an existing backlog of issues they are already working on. With newly reported issues they are first evaluated. If deemed urgent—i.e. they have a serious impact on sites and affect a large number of users—then, yes, other work is set aside and every effort is made to resolve them as quickly as possible and make the solution available to clients promptly.
But this is not such an issue. Testing reveals the WordPress 5.9 release broke dynamic sources with the Media and Text block, i.e. in January, and you are the first client to report the problem, after 5 months.
In support we have limited influence on how developers prioritise the issues they work on, except to make them aware of how many users are affected by the problem.
I can't say when the developers will work on the problem, except to say that we are in the middle of a development round which probably has a few weeks left to complete. This issue isn't on the development board for this release, but I'll encourage the developers to pick it up for the next cycle.
If there are a couple of weeks left in this cycle, and cycles are rarely shorter than a month, that suggests a minimum of 6 weeks before a plugin update containing a fix, and it could be longer.
What we can do in support is to make available a patch ahead of the plugin update if that is practicable when the developers have produced a fix, and that's what Waqar will be able to communicate with you next, hopefully.