In the Flashback episode, in the first Medivo level, you can access a secret level. The problem is: after you complete the secret level, you are brought back to the same position in the first Medivo level where you are warped to the secret level, but the warp is still active so you are immediately sent back to the secret level and you basically become stuck in this infinite loop. Is there a way to solve this issue or do I have simply to accept it and avoid the secret level so I won't become stuck in this loop? I'm playing the GoG release that comes with the Secret Files expansion.

The images attached are displaying the location of the secret if anyone wants to recreate this issue (you have to make a running jump to the right to reach the secret in the wall)

Sadly doesn't seem to do anything. Replaced the original level file, but still can't get out of the loop. On the contrary, it just seems to completely corrupt the level and if I load a save in medivo1 with the new file in, the tileset is completely broken. Had to restore the original file.

Guess I'll just have to skip the secret level.

I know people would call it unkosher, but have you ever tried Jazz² Resurrection?

It'll soon have support for JJ2+/MLLE things.

Definitely too late now, but also found out that GOG has the JJ2+ built-in as a Galaxy Beta channel. Very likely that might have fixed it.

https://gog.jj2.plus/