Sikuli hangs when using WaitBestList but works with FindBestList- need workaround

[Chetan]

when we use WaitBestList and set a particular region to search then sikuli hangs. however if we use findBestList then same code work.
we have to finally kill it from taskbar. also we can see it is consume lot of memory and cpu
example
    reg = Region(20,600,1240,20)
    #reg.highlight(5)
    name=["RichMediaToolsFeat","RichMediaToolsLocal"]

    reg.waitBestList(5,name) #does not work and hangs
    #reg.findBestList(name) #works fine

also found out that if i give bigger region then it works and does not hang
debug logs
[debug] Region: Key.WIN as modifier
[debug] ( Windows ) TYPE "#UP."
[debug] Region: ( Windows ) TYPE "#UP."
[debug] OCR: start: Tess4J 4.5.4 using Tesseract 4.1.x
[debug] Finder2: makeMat: INT_RGB (1280x720)
[debug] Finder2: doFindText: Home (1360 msec): not found
[debug] waitBest: enter
[debug] findAnyCollect: waiting for SubFindRuns
[debug] Image: loaded: RichMediaToolsFeat.png (file:/C:/Perf/Work/Groups/AntiPirates/PDFNext/Automations/FeatTests/FEAT/Unified%20Share/UI_Automation/TestFiles/AcroUIImageRepo/RichMediaToolsFeat.png)
[debug] Image: loaded: RichMediaToolsLocal.png (file:/C:/Perf/Work/Groups/AntiPirates/PDFNext/Automations/FeatTests/FEAT/Unified%20Share/UI_Automation/TestFiles/AcroUIImageRepo/RichMediaToolsLocal.png)
[debug] Image: cached: RichMediaToolsFeat.png (26 KB) (# 1 KB 26 -- 0 % of 64 MB)
[debug] Image: cached: RichMediaToolsLocal.png (27 KB) (# 2 KB 54 -- 0 % of 64 MB)
[debug] Finder2: makeMat: INT_RGB (1240x20)
[debug] Finder2: makeMat: 3BYTE_BGR (104x88)
[debug] Finder2: makeMat: INT_RGB (1240x20)
[debug] Finder2: makeMat: 3BYTE_BGR (105x91)

[Chetan (cshamdas)]

also attaching the images if needed

[Chetan (cshamdas)]

any update on this?

[RaiMan (raimund-hocke)]

to be tested with 2.0.6