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22.2.0 and 22.2.1 are affected by the following bug: if you attach an object to a Time Table or an MTBFMTTR, and you also use a Parameter to "Delete and Copy" that object, then the copies are attached to the Time Table or MTBFMTTR twice.

You can add the following code to your model's OnReset trigger to resolve the issue. It removes duplicate objects from Time Tables and MTBFMTTRs.

Array affectedObjects;
treenode timeTablesFolder = Model.find("Tools/TimeTables");
if (timeTablesFolder) {
    affectedObjects.append(timeTablesFolder.subnodes.toArray());
}

treenode mtbfFolder = Model.find("Tools/MTBFMTTR");
if (mtbfFolder) {
    affectedObjects.append(mtbfFolder.subnodes.toArray());
}

for (int i = 1; i <= affectedObjects.length; i++) {
    treenode obj = affectedObjects[i];
    if (!(isclasstype(obj, "TimeTable") || isclasstype(obj, "MTBFMTTR"))) {
        continue;
    }
    
    var members = getvarnode(obj, "members").subnodes;
    Map memberMap;
    Array invalidLinks;
    for (int j = 1; j <= members.length; j++) {
        treenode link = members[j];
        treenode member = link.find("+/~");
        if (!member || memberMap.find(member)) {
            invalidLinks.push(link);
        } else {
            memberMap[member] = 1;
        }
    }
    
    for (int j = 1; j <= invalidLinks.length; j++) {
        invalidLinks[j].destroy();
    }
}