how to create plotly line chart in shinyapp with multiple level variable - r

Question

Hi im trying to plot simple chart using plotly in the Shiny app. It is a line chart with Frequency variable on the X-Axis and a Metric on y-axis. i'm expecting two lines in the charts as i'm calling in a variable that has two levels in the UI. i'm getting the chart when i have one input from the groupcheckbox, but the goes blank when i select two options. i dont know what i'm doing wrong here, I'm not getting any error notifications.thanks for your inputs in advance
pasting the code with data here.
library(shiny)
library(plotly)
library(readxl)
prod<-c("BrandB", "BrandA", "BrandB", "BrandA", "BrandB", "BrandA","BrandB","BrandA","BrandB","BrandA","BrandB","BrandA","BrandB","BrandA","BrandB","BrandA")
Freq<-c("W7","W7","W8","W8","W9","W9","W10","W10","W10","W10","W7","W7","W8","W8","W9","W9")
Metric1<-c(0.515,0.444,0.518,0.446,0.529,0.405,0.497,0.376,0.505,0.494,0.515,0.444,0.518,0.446,0.529,0.405)
Cut<-c("RBs","RBs","RBs","RBs","RBs","RBs","Total","Total","RBs","RBs","Total","Total","Total","Total","Total","Total")
DF<-data.frame(prod,Freq,Metric1,Cut)
str(DF)
DF$Brand<-as.factor(DF$prod)
DF$Wave<-factor(DF$Freq,levels=c("W7","W8","W9","W10"))
#View(DF)
ui <- fluidPage(
# useShinydashboard(),
titlePanel("Dassy"),
fluidRow(
column(3,
checkboxGroupInput(inputId = "Prod",
label = "Choose Fill For the Chart",
choices = c("BrandA" = "BrandA","BrandB" = "BrandB"),
selected = "BrandA"
)),
column(3,
selectInput(inputId = "Cut",
label = "Choose Fill For the Chart",
choices = c("Total" = "Total","RBs" = "RBs"),
selected = "Total")
),actionButton("go_button", "GO !")
),
mainPanel(
plotlyOutput("distPlot"))
)
server <- function(input, output) {
observeEvent(input$go_button,{
output$distPlot <- renderPlotly({
DF1 <- reactive({
DF%>%filter(Cut == input$Cut & prod == input$Prod)
}
)
p1<-plot_ly(DF1(),x=~Freq, y=~Metric1, color = ~prod, width=1200, height=300)%>% add_lines(line = list(shape = "spline"))
p1<-p1%>%layout(yaxis=list(tickformat ="%"))
})
#observe Event
})
}
#??plot_ly()
shinyApp(ui = ui, server = server)
With single option selected line graph generated
With two option selected blank chart gets generated