# 3.5 IPR - crashes with Forrest Pack **URL:** \ **Category:** Issues\ **Created:** [February 24, 2017, 7:02am UTC](https://forums.chaos.com/t/3-5-ipr-crashes-with-forrest-pack/62522 "2017-02-24T07:02:11Z")\ **Posts on this page:** 14\ **Page:** 1
**Author:** ![PIXELBOX\_SRO](https://avatars.discourse-cdn.com/v4/letter/p/97f17d/32.png) [@PIXELBOX\_SRO](https://forums.chaos.com/u/PIXELBOX_SRO)\ **Post date:** [February 24, 2017, 7:02am UTC](https://forums.chaos.com/t/3-5-ipr-crashes-with-forrest-pack/62522/1 "2017-02-24T07:02:11Z")
Hi, IPR quite unusable with FP, crashes almost on every parameter change. Straight crashes to desktop + some runtime errors. Unsure if this is in FP side or Vray side though šŸ™‚ M ---
**Author:** ![PIXELBOX\_SRO](https://avatars.discourse-cdn.com/v4/letter/p/97f17d/32.png) [@PIXELBOX\_SRO](https://forums.chaos.com/u/PIXELBOX_SRO)\ **Post date:** [February 24, 2017, 7:12am UTC](https://forums.chaos.com/t/3-5-ipr-crashes-with-forrest-pack/62522/2 "2017-02-24T07:12:00Z")
well you dont even have to change anythingā€¦it just crashes by itself after some brief time ---
**Author:** ![PIXELBOX\_SRO](https://avatars.discourse-cdn.com/v4/letter/p/97f17d/32.png) [@PIXELBOX\_SRO](https://forums.chaos.com/u/PIXELBOX_SRO)\ **Post date:** [February 24, 2017, 7:17am UTC](https://forums.chaos.com/t/3-5-ipr-crashes-with-forrest-pack/62522/3 "2017-02-24T07:17:59Z")
so it looks like FP just doesnt really like 3.5 - no matter if you use IPR or normal render. I get the blue Wheel all the time - max stops responding :-/ ---
**Author:** ![matanov](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/matanov/32/21656_2.png) [@matanov](https://forums.chaos.com/u/matanov)\ **Post date:** [February 24, 2017, 12:27pm UTC](https://forums.chaos.com/t/3-5-ipr-crashes-with-forrest-pack/62522/4 "2017-02-24T12:27:25Z")
What FP is this ? ---
**Author:** ![tryharder](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/tryharder/32/38896_2.png) [@tryharder](https://forums.chaos.com/u/tryharder)\ **Post date:** [February 24, 2017, 3:47pm UTC](https://forums.chaos.com/t/3-5-ipr-crashes-with-forrest-pack/62522/5 "2017-02-24T15:47:14Z")
do you use the new beta from forest pack ??? ---
**Author:** ![NicoC](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/nicoc/32/23122_2.png) [@NicoC](https://forums.chaos.com/u/NicoC)\ **Post date:** [February 24, 2017, 4:04pm UTC](https://forums.chaos.com/t/3-5-ipr-crashes-with-forrest-pack/62522/6 "2017-02-24T16:04:11Z")
> [@3.20.02 Cant connect slaves after the last render](https://forums.chaos.com/t/3-20-02-cant-connect-slaves-after-the-last-render/54099/2): > > do you use the new beta from forest pack ??? Yes, you should be using FPP v5.2.2, which is the first to be compatible with VRay v3.5 ---
**Author:** ![jstrob](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/jstrob/32/62923_2.png) [@jstrob](https://forums.chaos.com/u/jstrob)\ **Post date:** [February 24, 2017, 4:10pm UTC](https://forums.chaos.com/t/3-5-ipr-crashes-with-forrest-pack/62522/7 "2017-02-24T16:10:26Z")
I just noticed my forest pack pro expired last month and so I would have to pay again just to make it work with vray 3.5. that why I think max+too many plugins sucks! ---
**Author:** ![rikou](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/rikou/32/11549_2.png) [@rikou](https://forums.chaos.com/u/rikou)\ **Post date:** [February 24, 2017, 4:20pm UTC](https://forums.chaos.com/t/3-5-ipr-crashes-with-forrest-pack/62522/8 "2017-02-24T16:20:13Z")
> [@Mic advice needed](https://forums.chaos.com/t/mic-advice-needed/54097/2): > > I just noticed my forest pack pro expired last month and so I would have to pay again just to make it work with vray 3.5. that why I think max+too many plugins sucks! I understand and Iā€™m so agree with you !!! Take off all those plugins from 3ds max and there is no much leftā€¦ ---
**Author:** ![PIXELBOX\_SRO](https://avatars.discourse-cdn.com/v4/letter/p/97f17d/32.png) [@PIXELBOX\_SRO](https://forums.chaos.com/u/PIXELBOX_SRO)\ **Post date:** [February 25, 2017, 8:59pm UTC](https://forums.chaos.com/t/3-5-ipr-crashes-with-forrest-pack/62522/9 "2017-02-25T20:59:14Z")
Yes iam using the latest forest pack it crashes almostinstantly as i do something ill send the scene to support on monday morning ---
**Author:** ![william.morris](https://avatars.discourse-cdn.com/v4/letter/w/57b2e6/32.png) [@william.morris](https://forums.chaos.com/u/william.morris)\ **Post date:** [February 26, 2017, 9:29pm UTC](https://forums.chaos.com/t/3-5-ipr-crashes-with-forrest-pack/62522/10 "2017-02-26T21:29:07Z")
I also find that the new IPR crashes when using Forrest Pack. I will check if I have the latest FP update! ---
**Author:** ![zeronovestudio](https://avatars.discourse-cdn.com/v4/letter/z/e95f7d/32.png) [@zeronovestudio](https://forums.chaos.com/u/zeronovestudio)\ **Post date:** [February 27, 2017, 9:04am UTC](https://forums.chaos.com/t/3-5-ipr-crashes-with-forrest-pack/62522/11 "2017-02-27T09:04:59Z")
> [@Mic advice needed](https://forums.chaos.com/t/mic-advice-needed/54097/2): > > I just noticed my forest pack pro expired last month and so I would have to pay again just to make it work with vray 3.5. that why I think max+too many plugins sucks! yeah, for me itā€™s the main problem with FP licensing ā€¦itā€™s true that itā€™s fair and theoretically optional but itā€™s pratically tied to VRay releases that leads to ā€œnew VRay - new FPā€; they donā€™t provide a FP previous release compatibility with newer VRay (like VRay does for instance) so ā€¦if subscription has expired ā€¦you are out ā˜¹ ..like me right now ---
**Author:** ![TutanMark](https://avatars.discourse-cdn.com/v4/letter/t/e19adc/32.png) [@TutanMark](https://forums.chaos.com/u/TutanMark)\ **Post date:** [February 27, 2017, 10:40am UTC](https://forums.chaos.com/t/3-5-ipr-crashes-with-forrest-pack/62522/12 "2017-02-27T10:40:47Z")
i rendered a 18mln polys exterior few days ago using Max 2017 + Forest 5.2.2b + vray 3.50.03 and it worked well for me. This morning i tried also IPR with a simple scene (a plane with forest applied) triying to add some simply objects to the scene , move lights , modify materials , camera settings, and so on and i didnā€™t get any crashes. I just got a crash when i forgot to stop IPR and tried to open another Max fileā€¦ but itā€™s not a regular situation i think, could not be considered a bug. Again i opened my exterior above and tried in bucket mode, progressive and IPR without any visible error untill now. Hope could help. Marco ---
**Author:** ![Itoosoft](https://avatars.discourse-cdn.com/v4/letter/i/ea5d25/32.png) [@Itoosoft](https://forums.chaos.com/u/Itoosoft)\ **Post date:** [March 2, 2017, 9:41am UTC](https://forums.chaos.com/t/3-5-ipr-crashes-with-forrest-pack/62522/13 "2017-03-02T09:41:58Z")
We just uploaded a new [Forest beta](http://forum.itoosoft.com/index.php?topic=4337.0), which should solve the crashes with IPR. Please note some problems may exist yet, because IPR uses a mixed viewport-render mode and Forest was not designed to work in that way. If you find other issues, please report them in our [beta forum](http://forum.itoosoft.com/index.php?board=11.0) and weā€™ll try to fix them. Thanks ! ---
**Author:** ![PIXELBOX\_SRO](https://avatars.discourse-cdn.com/v4/letter/p/97f17d/32.png) [@PIXELBOX\_SRO](https://forums.chaos.com/u/PIXELBOX_SRO)\ **Post date:** [March 2, 2017, 9:46am UTC](https://forums.chaos.com/t/3-5-ipr-crashes-with-forrest-pack/62522/14 "2017-03-02T09:46:32Z")
thanks will do šŸ™‚