Chef stands outside restaurant
This bug was fixed in Patch 1.97.42/1.73
Sims can’t ski/snowboard/sled (Routing)
Restaurants and umbrellas can be the reason you're seeing routing issues with trying to go ski/snowboard/sled. For console the slopes are broken in several ways.
Restaurant Employees do not appear in Sulani
This issue was fixed in Patch 1.54.120
Restaurants – Issues and Workarounds
Some tips for building a restaurant and getting around the issues. Some of the tips are still valid, others have been fixed and been replaced by new ones.
Restaurant/Retail store corruption
Restaurants aren't properly recognized as owned.
Restaurant: Food is not being served/cooked
My cook is cooking the meal but does so in a loop. Food never finishes
How to hire your own created Sims for Restaurants
Instructions on how to hire your own Sims as employees