Buttons with RemoveButton=false no longer work

[tbastos]

All of my SmartBlock Buttons with RemoveButton=false ceased to work approximately 4 days ago. The workflow is triggered, but before any content is added (nested as children) the below error happens. If I remove the RemoveButton=false part, everything works as intended... except I'd rather keep my buttons :-)

Error {
    "message": "Error in create-block: Parent entity doesn't exist",
    "data": {
        "meta": null,
        "Od": 0,
        "arr": [],
        "Hd": -15128758,
        "Jd": 16647951,
        "Ld": 139268
    },
    "cause": null,
    "name": "Error",
    "stack": "Error: Error in create-block: Parent entity doesn't exist\n    at new <anonymous> (https://roamresearch.com/js/compiled/main.js?__WB_REVISION__=140aabfd0fd7f0d212ef26a852e3e1bb:4101:194)\n    at Function.zd (https://roamresearch.com/js/compiled/main.js?__WB_REVISION__=140aabfd0fd7f0d212ef26a852e3e1bb:7924:380)\n    at Function.xd (https://roamresearch.com/js/compiled/main.js?__WB_REVISION__=140aabfd0fd7f0d212ef26a852e3e1bb:7924:332)\n    at https://roamresearch.com/js/compiled/main.js?__WB_REVISION__=140aabfd0fd7f0d212ef26a852e3e1bb:10214:368\n    at Object.xd (https://roamresearch.com/js/compiled/main.js?__WB_REVISION__=140aabfd0fd7f0d212ef26a852e3e1bb:7906:305)\n    at Object.a1 (/js/compiled/route-app.js:2304:261)\n    at l (/js/compiled/route-app.js:784:462)\n    at Function.m [as yd] (/js/compiled/route-app.js:785:293)\n    at Object.Tv (https://roamresearch.com/js/compiled/main.js?__WB_REVISION__=140aabfd0fd7f0d212ef26a852e3e1bb:4610:188)\n    at https://roamresearch.com/js/compiled/main.js?__WB_REVISION__=140aabfd0fd7f0d212ef26a852e3e1bb:4610:356\n    at https://roamresearch.com/js/compiled/main.js?__WB_REVISION__=140aabfd0fd7f0d212ef26a852e3e1bb:9228:460\n    at Exa (https://roamresearch.com/js/compiled/main.js?__WB_REVISION__=140aabfd0fd7f0d212ef26a852e3e1bb:4602:88)\n    at MessagePort.<anonymous> (https://roamresearch.com/js/compiled/main.js?__WB_REVISION__=140aabfd0fd7f0d212ef26a852e3e1bb:3899:243)"
}