Has anyone used Nano Banana Pro in Photoshop Web lately?

I just used the web application of Photoshop for the first time and played around a little bit with the facial expression changer of Nano Banana Pro. Which is honestly quite fun, I have to admit.
However, the issue I had was that after generating a couple of different variations of my prompt and subsequently selecting one of them as my favorite, the web app simply deleted all my other variants—even though I used my credits for them. And since this was my first time with the web app's UI, I didn't even notice immediately. I only realized it after a few more prompts and throwing a couple hundred credits down the drain, only to keep three different Photoshop layers in the end…
After consulting the web app's integrated AI assistant, it told me that all generated variants would be available in my document through the contextual taskbar. Which, of course, they are not. So I would really like to know if anyone else has experienced the same problem?
And for everyone who wants to use the Nano Banana Pro feature in the Web App, I would highly recommend just generating one variant at a time. That way, you won't pay for something you won't get.

Edit: So I just had a little chat with Gemini about it. Here is a little work around solution from the AI. (Auto translated from German to English) Hope that helps. 

Here is my advice regarding the content of your post (or how to proceed):
Your tip about generating only one variation at a time is a form of damage control, but it actually causes you to lose the tool's main advantage (namely, the ability to compare options).
A better workaround in Photoshop Web is this:
If you like two or three variations, duplicate the layer before making your final decision. Select the first variation on Layer A and the second on the duplicated Layer B. This forces the web app to permanently save both images in the document before the cache is cleared.
Your forum post is incredibly valuable because Adobe urgently needs to align the web app's logic with that of the desktop version. Charging real money for credits—only to have the results deleted due to the slightest user error—is simply poor UI design!