Recording both singleplayer and multiplayer works just fine. However, I can only view singleplayer and create footage for that. As soon as I try to launch the .mcpr footage in game from multiplayer servers, the game will crash.

hs_err_pid25036.log

Here is game crash .txt as well

crash-2023-07-26_07.12.22-fml.txt

seems like a problem of grappling hook mod

Tried again without Grappling Hook mod, same issue
hs_err_pid10088.log

Sorry for closing - new to GitHub and pushing buttons is fun

please post a crash report not a hs_err log

When the game crashes there is no crash report generated, however I'll post the latest.log and hs_err for this new attempt:
latest.log
hs_err_pid15168.log

try removing optifine
if you want shader and optimization, use rubidium and oculus

Removed Optifine to no avail, sorry. Here's the log
latest.log

can you update the mod to 1.0.7 and try again?

Still crashing, Optifine was removed for this test, no crash report generated.
hs_err_pid5792.log
latest.log

Having the same issue, absolutely cant view Server recordings

same issue
hs_err_pid17904.log