Does Symbol of the Solari recall all units everywhere?

No, just the units that were involved in the tie. It’s receiving minor errata to clarify this. If a combat where you are the attacker ends in a tie that would recall any of your units, recall all units at that battlefield instead. (Send them to base. This isn't a move. Ties are calculated after combat damage is dealt.)

Related: Rule 466.3.d, Symbol of the Solari