Problem with saving activities

[aroo7]

Recently, it has happened to me several times that my watch (Spartan Ultra) was not able to save completed activity. The following message appears: Saving… and everything freezes. And, in fact, it doesn’t freezing, but falls into loops because the animation is active and it goes round and round. I left the watch like this for a few hours once, but nothing has changed - it kept displaing: Saving…

Only resetting the device helps, the previously performed training is unfortunately not saved.
Anyone met with something like this before?

[sartoric]

This topic has been discussed several times.
Please use search function first.

Closing to avoid duplicates

https://forum.suunto.com/search?term=spartan ultra freeze save&in=titlesposts&matchWords=all&sortBy=relevance&sortDirection=desc&showAs=posts

https://forum.suunto.com/topic/4074/saving-exercise/23?_=1593587919268