Downgradable versions disappeared from the list

An example is LG thinq. https://apps.apple.com/ru/app/lg-thinq/id993504342

all the versions between the current and the latest available in appstore++ were available just a couple of weeks ago.

Is this a temporary issue?

This has also happened to me with my banking app. I kept it on a lower version due to jailbreak detection being added on a newer version, and I was able to downgrade to the previous version without the jailbreak check but now that version is no longer available, I only get versions from last year on the list of available versions. Pretty sure this is an issue with the server where AppStore++ gets the .ipas and not with the tweak itself though, since it is happening with another similar tweak that uses the same server as AppStore++.