Values of "Inf" appear in rsq of wtc function

[clivelo]

When I used the wtc function with two time series (mother="morlet, param=8"), I found some white specks on the plot. (please note x-axis: 2000, y-axis: 4)

I then looked into the rsq variable and find the max value of one of the frequency bands (max(wtc.t1t2[["rsq"]][14, ])), and it returned Inf. Min value returned a negative value. Shouldn't rsq produce values between 0 and 1?