Message sent in My Flow disappears after reloading the panel

[PJSS]

PJSS last edited by leocg

At the time I'm wrritting this post, I've been facing some issues like the following:

If I try to send something from my PC to my flow:

I can actually see it on my smartphone:

But if I reload My flow in the same browser I sent it, on the same session, without modifying anything:

The message I just sent dissapears. Not to mention that all the content I have been sending from my mobile to My Flow, makes the notification dot on my PC to appear, but when I open My Flow, the notification dot dissapears and nothing after Jan 24, 2023 appears.

I've been looking for a solution in other posts, checking if I enabled syncronization on the background, coockies and none of those solutions have solved the problem.
I hope I can bring something useful in order to solve the problem with the steps I showed in this post.
(PC is windows 10 custom build by https://windowsxlite.com, not sure if the other posts have a custom build of Windows 10, but this is my case.
Just updated Opera GX to core: 95.0.4635.74, the issue has been there before, but just now I found steps to reproduce the error 100% of the time)