Bingo! You nailed it. I had an incorrect component listed in the getter. That problem is solved; thank you.
However, I’m still having an issue with this error popping up whenever I drop a custom component:
[An internal error has occurred] - see browser console for more details
TypeError: Cannot read properties of undefined (reading 'pyComponent')
at https://anvil.works/runtime-new/runtime/dist/designer2.bundle.js?sha=8bea7b3a26270fb8697091bd19a22a0b7cc7b172735df0f73227a3e357fabd4a:20:58022
at Generator.next (<anonymous>)
at b (https://anvil.works/runtime-new/runtime/dist/designer2.bundle.js?sha=8bea7b3a26270fb8697091bd19a22a0b7cc7b172735df0f73227a3e357fabd4a:20:53217)
at a (https://anvil.works/runtime-new/runtime/dist/designer2.bundle.js?sha=8bea7b3a26270fb8697091bd19a22a0b7cc7b172735df0f73227a3e357fabd4a:20:53420)
at https://anvil.works/runtime-new/runtime/dist/designer2.bundle.js?sha=8bea7b3a26270fb8697091bd19a22a0b7cc7b172735df0f73227a3e357fabd4a:20:53479
at new Promise (<anonymous>)
at https://anvil.works/runtime-new/runtime/dist/designer2.bundle.js?sha=8bea7b3a26270fb8697091bd19a22a0b7cc7b172735df0f73227a3e357fabd4a:20:53360
at E (https://anvil.works/runtime-new/runtime/dist/designer2.bundle.js?sha=8bea7b3a26270fb8697091bd19a22a0b7cc7b172735df0f73227a3e357fabd4a:20:55573)
at https://anvil.works/runtime-new/runtime/dist/designer2.bundle.js?sha=8bea7b3a26270fb8697091bd19a22a0b7cc7b172735df0f73227a3e357fabd4a:28:34770
at Generator.next (<anonymous>)