I have been starting to run 11 orb and even when everything is going correctly when Yoshi eats the Clappin' Chuck my game usually crashes. Any tips to avoid this? Thanks.

Depends probably on the platform you play. The emulated version or snes mini, for example, do not often crash.
Good luck !

If you take damage, the game crashes. You can mostly avoid that by ducking.

What @Volpey said; essentially the powerup you get depends on the kind of chuck (which will always be the same of course) but also Mario's powerup. For orb, you'll want to swap the clappin' chuck as FIRE Mario; ie taking damage will make you SMALL Mario and you'll crash.

Try standing further left on the pipe before jumping off to burn the Rex, as standing too far right can also be a problem.

Here's a table of which powerup/chuck combinations will give you which powerups. Many of these crash the game, however

https://smwspeedruns.com/Unintended_Sprite_Spawning

K thx I was getting hit a lot it seems.