Displacement vectors no longer seem to work

Hi, I've noticed an error in meshDist that no longer allows displacement vectors to be plotted. It seems to be the case even with the example provided in the documentation:

library(Morpho)
data(nose)
longnose.mesh <- tps3d(shortnose.mesh, shortnose.lm, longnose.lm,threads=1)   
mD <- meshDist(longnose.mesh, shortnose.mesh, displace = T)

The error I've consistently seen across several versions of R/Morpho is: Error in normals[as.numeric(inds), ] : subscript out of bounds

Any insight would be appreciated! -David

PS - Session info below in case that's useful.

R version 4.1.0 (2021-05-18) Platform: x86_64-w64-mingw32/x64 (64-bit) Running under: Windows 10 x64 (build 19042)

Matrix products: default

locale: [1] LC_COLLATE=English_United States.1252 [2] LC_CTYPE=English_United States.1252
[3] LC_MONETARY=English_United States.1252 [4] LC_NUMERIC=C
[5] LC_TIME=English_United States.1252

attached base packages: [1] stats graphics grDevices [4] utils datasets methods
[7] base

other attached packages: [1] Morpho_2.8

loaded via a namespace (and not attached): [1] Rcpp_1.0.6
[2] magrittr_2.0.1
[3] knitr_1.33
[4] MASS_7.3-54
[5] doParallel_1.0.16
[6] xtable_1.8-4
[7] lattice_0.20-44
[8] R6_2.5.0
[9] Rvcg_0.19.2
[10] rlang_0.4.11
[11] fastmap_1.1.0
[12] foreach_1.5.1
[13] tools_4.1.0
[14] parallel_4.1.0
[15] grid_4.1.0
[16] xfun_0.24
[17] miniUI_0.1.1.1
[18] ellipsis_0.3.2
[19] htmltools_0.5.1.1
[20] crosstalk_1.1.1
[21] iterators_1.0.13
[22] shinyjs_2.0.0
[23] abind_1.4-5
[24] digest_0.6.27
[25] rgl_0.106.8
[26] lifecycle_1.0.0
[27] Matrix_1.3-3
[28] shiny_1.6.0
[29] later_1.2.0
[30] promises_1.2.0.1
[31] htmlwidgets_1.5.3
[32] codetools_0.2-18
[33] manipulateWidget_0.11.0 [34] mime_0.11
[35] evaluate_0.14
[36] rmarkdown_2.11
[37] compiler_4.1.0
[38] colorRamps_2.3
[39] jsonlite_1.7.2
[40] httpuv_1.6.1

zarquon42b / Morpho

Displacement vectors no longer seem to work #27