Scriptrunnre behaviour hides priority icons

[Anton Sergeevich Khmilevskiy]

Good day

I'm trying to show set of priorities in depend of custom field value.

When behaviour shows hided priority it removes icon.

private void setCorrectPriorities(String IssueType) {
    def constantsManager = ComponentAccessor.getConstantsManager()
    def prioritynames
    if (IssueType == "Service GS") {
        prioritynames = ["Low", "Medium", "High"]
    } else {
        prioritynames = ["Low", "Medium"]
    }

    def allowedPriorities = constantsManager.getPriorities().findAll {
        it.name in prioritynames
    }.collectEntries {
        [(it.id): it.name]
    }
    log.debug("allowed priorities for ${IssueType}: ${prioritynames}")

    getFieldById(PRIORITY).setFieldOptions(allowedPriorities)
}

Does anyone knows what to do with it