User LampLight#0515 reported, that clicking on the game-timeline while playing the path-preview creates an infinite loading loop.
A video of that can be found here:
https://discord.com/channels/708304818829262910/709108200632483900/935330846762754078
They tested it with ReplayMod 2.6.3 - game version requested, but no reply yet.

I tried to reproduce it in 1.18.1 with RM 2.6.3 only. While it did reload, I didn't get the loading loop. But it crashed for me when I clicked just in front of the game-time indicator (it was a relatively short recording, so the indicator ran into that position, while the reloading was happening). Here is the crash-report:
crash-2022-01-25_01.42.36-client.txt