Game locks in busy maps

Reporting a bug whereby the game locks at busy endgame times - breach maps/abyss etc. If I wait a minute or so the central cog wheels appear and the game will recommence which is great. Problem is, when the cogwheels are turning I can hear my character moving and performing tasks but I cannot see them. This means enemies can attack me. Died twice last night during breach last night because of this - lost a few hours of gaming because of it.
Additionally, after this happens the entire map is undiscovered so I can't see where I've been, although the enemies I've killed are still dead etc.

Internet is stable - running 300 mps usually. Played endgame with Ps5 previously and this was not an issue.

Playing on laptop 3050TI - all settings on low.