Who has standing?

“’Texas courts have long held that an appealing party may not complain of errors that do not injuriously affect it or that merely affect the rights of others.’ An appellant is not harmed when sanctions are imposed solely against the appellant’s attorney and does not have standing to challenge an order imposing sanctions solely upon his attorney.” On Deck Capital, Inc. v. CWO Designer Landscapes, No. 05-20-00471-CV (Feb. 10, 2022) (mem. op.).